A N N U A L R E P O R T

A N D F O R M 1 0 - K

2005

Weste rn Dig i t a l

Western Digital is an information storage pioneerand long-time industry leader providing products andservices for people and organizations that collect,manage and use digital information. We producereliable, high-performance hard drives that keepusers' data close at hand and secure from loss.

In addition to the design, development, manufacture,and sale of hard drives for desktop and mobilecomputers, WD is growing in other applications forrotating magnetic storage, notably personal anddigital video recorders, and storage in the enterprisemarket. The company also produces a full range ofexternal hard drives for desktop and portableapplications.

WD was founded in 1970. Our hard drives aremarketed to leading systems manufacturers andselected resellers under the Western Digital® andWD™ brand names.

Product, financial, and investor information isavailable on our Web site at www.westerndigital.com.

The Company

Letter to our

Shareholders

Western Digital had an outstanding year in fiscal 2005. Revenues,operating income, cash flow and earnings per share grew strongly;our financial condition improved; and our development effortsyielded new opportunities in fast-growing markets.

The global market for personal computers – the industry’s highest volume market – continued its steady growth, and other applications for rotating magnetic storage opened numerousopportunities for even more rapid growth. Geographicdiversification also played a part in WD’s strong results as revenuesclimbed in high-growth international markets such as those ofAsia, which now accounts for nearly a third of our revenue.

We continued to focus on cash and asset management, resulting incash flow from operations of $461 million – well over twice thatof the previous year. As a result, WD’s balance sheet improved,with year-end cash and short-term investments of $598 millionand shareholders’ equity reaching a record $702 million.

The company’s better financial results were accompanied bysubstantially greater investments in research and development. Theproducts that resulted from this effort now give WD the ability toserve more than 80 percent of the total available market for harddrives, up from 60 percent just a year ago. We will be addressing90 percent of the world’s hard drive markets when our new, one-inch drives begin shipping.

In last year’s report, I outlined our near-term aims: maintainingsteady, profitable growth in desktop hard drives by furtherleveraging our leadership position in the industry’s highest-volumemarket; building our market position in hard drives for enterprise-class applications, personal video recorders, and other consumerentertainment products; making a measured, rational entry intothe mobile personal computer hard drive market; and extendingour design and manufacturing expertise into even smaller formfactor drives for application in consumer electronics devices.

Matt MassengillChairman and Chief Executive Officer

Dollars in millions

$0

$1,000

$2,000

$3,000

$4,000

REVENUE

FY2004

$3,047

FY2005

$3,639

FY2003

$2,719

FY2001

$1,953

FY2002

$2,151

Strong demand in personal computerand consumer markets resulted in a34% improvement in revenue overthe past two years.

($50)

$0

$50

$100

$150

$200

OPERATING INCOME

FY2002

$51

FY2001

($22)

FY2004

$155

Dollars in millions

FY2003

$187

FY2005

$197

The sustained success of the WD businessmodel enabled the company to achieveoperating income of $197 million in 2005.

We made substantial progress on all these initiatives:

• WD further enlarged its presence as a leading producer of desktop hard drives of high quality and reliability.

• We strengthened our product portfolio in the Serial ATA enterprisemarket with our WD Raptor® and WD Caviar® RE (RAID Edition)hard drives, including new products in 400 gigabyte capacities,and we saw steadily increasing acceptance of these products.

• WD more than tripled its unit volume in hard drives for personal and digital video recorders, building volume with existing customersand adding new ones in this still relatively new market that valuesand consumes higher storage capacities than the desktop PC market.

• We produced our first 2.5-inch hard drives and sold more than onemillion of them throughout fiscal 2005 to some of the leading producers of notebook PCs, a market that continues to see very healthy growth rates.

• We prepared for the introduction of our one-inch form factor hard drives, initially for MP3 players but to potentially include applications such as digital cameras, portable PC storage and cell phones.

The company also improved its volume in retail storage last year, anincreasingly significant opportunity to leverage the WD brand. Weadded new retail customers in North America and Europe; doubled salesof external storage units; and launched the NetCenter™ and the 2.5-inchWD Passport™ drives for the small business and digital home markets.

Substantial investments in research and development will continue, asrequired in the fast-changing and highly competitive hard drive business.The greater funding and more rapid pace of our R&D work means theentire WD product line will be refreshed by the end of calendar year2006.

The business model put into place five years ago has served us well. Itaims to offer highly reliable and high quality products at prices requiredfor mass-market adoption while providing adequate profit margins andcash flow. As market prices are driven steadily lower by customerdemand, competitive forces and production efficiencies, WD’s modelcontinues to provide the returns and the funds for reinvestment that werequire in new products, new technologies and our manufacturinginfrastructure.

Ample cash flow last year also enabled us to repurchase 4.8 millionshares of Western Digital common stock for a total of $45 million. This brought the totals to 6.7 million shares and $61 million since our$100 million repurchase authorization was approved by the Board inMay of 2004. We will take advantage of opportunities to acquire moreshares as they occur, consistent with our promise to work for greatershareholder value.

$0

5%

10%

15%

20%

FY2005

16.2%

FY2003

16.3%

FY2001

10.6%

FY2002

13.1%

GROSS MARGIN

FY2004

15.2%

Manufacturing efficiencies, richer productmix, continued quality improvements and a more moderate pricing environmentenabled WD to increase gross margins by100 basis points in 2005 over the prior year.

$0

$600

$100

$300

$200

$400

$500

FY2004

$378

FY2002

$224

FY2001

$168

FY2003

$393

FY2005

CASH and SHORT TERMINVESTMENTS

Dollars in millions$598

WD’s relentless focus on cash enabled thecompany to end 2005 with cash and shortterm investments of $598 million.

0%

40%

10%

20%

30%

PERCENTAGE OF REVENUEFROM SALES TO ASIA

FY2004

29.0%

FY2002

13.4%

FY2001

12.8%

FY2003

22.0%

FY2005

32.9%

WD’s percentage of revenue from sales toAsia improved to 32.9% in 2005,reflecting the company’s increased focus andsteady investments in that area of the world.

($150)

$250

($100)

$0

$100

$50

($50)

$150

$200

FREE CASH FLOWDollars in millions

FY2004

$58

FY2002

$35

FY2001

($110)

FY2003

$196

FY2005

$227

The company generated $227 millionin free cash flow, nearly four times thatof 2004. Free cash flow includes cashflow from operations less capitalexpenditures.

Another of our responsibilities to shareholders is to maintain a soundand deep leadership team. After nearly six years as chief executiveofficer, I recently informed the Board of Directors of my desire torelinquish that role and of my interest in remaining active with thecompany as executive chairman of the Board. Subsequently, theBoard named WD’s president Arif Shakeel to the additional post ofchief executive officer, effective October 1. Arif has prepared for theCEO position over the last several years, having held leadership rolesin every aspect of our business. He is an effective, thoughtful anddecisive leader, respected by his colleagues in the company andthroughout the hard drive industry. I will serve as executive chairman,consulting with Arif on strategy and management development andremaining involved in customer and investor relations.

We further strengthened the senior management team in June with the appointment of long-time WD operations executive John F. Coyne as executive vice president, worldwide operations.These moves will better prepare us to scale our operations andresources into new, high-growth markets in the years ahead.

Our long-term outlook remains favorable. We have a product lineup,quality reputation and track record that earn ongoing business fromour long-time OEM, distribution and retail customers. The marketover the coming years should be very good for our proven desktopand enterprise products, and the addition of smaller form factordrives for notebook computers and handheld consumer electronicsproducts, along with the personal and digital video recorder market,should enable us to substantially grow our non-desktop PC businessin the years ahead.

We have a great deal to do, and many ways to grow. Our manage-ment has pledged to maintain the research and development effort,the facilities, the financial resources and the professional team weneed to take advantage of all our opportunities. We look forward toreporting continued favorable results to enable continued growth inthe value of our company.

Matthew E. Massengill

Chairman and Chief Executive Officer

September 14, 2005

SHAREHOLDERS' EQUITYDollars in millions

$0

$800

$100

$300

$500

$400

$200

$600

$700

FY2002

$103

FY2001

$7

FY2003

$327

FY2005

$702

FY2004

$488

The company ended 2005 with $702million of shareholders’ equity and itsstrongest balance sheet in over six years.

UNITED STATESSECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K(Mark One)

≤ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the fiscal year ended July 1, 2005

or

n TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 1-8703

WESTERN DIGITAL CORPORATION(Exact Name of Registrant as Specified in Its Charter)

Delaware 33-0956711(State or Other Jurisdiction of (I.R.S. EmployerIncorporation or Organization) Identification No.)

20511 Lake Forest DriveLake Forest, California 92630

(Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code: (949) 672-7000

Securities registered pursuant to Section 12(b) of the Act:

Name of each exchangeTitle of each class on which registered

Common Stock, $.01 Par Value Per Share New York Stock ExchangeRights to Purchase Series A Junior New York Stock Exchange

Participating Preferred Stock

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the

Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file

such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ≤ No n

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will

not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in

Part III of this Form 10-K or any amendment to this Form 10-K. n

Indicate by check mark whether the registrant is an accelerated filer (as defined in Exchange Act

Rule 12b-2). Yes ≤ No n

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange

Act). Yes n No ≤

The aggregate market value of the registrant's common stock held by non-affiliates of the registrant on December 31, 2004, the

last business day of the registrant's most recently completed second fiscal quarter, was approximately $2.2 billion.

As of the close of business on August 26, 2005, 216.6 million shares of common stock, par value $.01 per share, were

outstanding.

Documents Incorporated by Reference

Part III incorporates by reference certain information from the registrant's definitive proxy statement (the ""Proxy Statement'')

for the 2005 Annual Meeting of Shareholders, which will be filed with the Securities and Exchange Commission within 120 days after

the close of the 2005 fiscal year. Except with respect to information specifically incorporated by reference in this Form 10-K, the Proxy

Statement is not deemed to be filed as part hereof.

WESTERN DIGITAL CORPORATION

INDEX TO ANNUAL REPORT ON FORM 10-KFor the Fiscal Year Ended July 1, 2005

Page

PART I

Item 1. Business ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 3

Item 2. Properties ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 13

Item 3. Legal Proceedings ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 14

Item 4. Submission of Matters to a Vote of Security Holders ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 14

PART II

Item 5. Market for Registrant's Common Equity, Related Stockholder Matters, and Issuer Purchases ofEquity Securities ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 15

Item 6. Selected Financial Data ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 16

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations ÏÏÏÏ 16

Item 7A. Quantitative and Qualitative Disclosures About Market RiskÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 36

Item 8. Financial Statements and Supplementary Data ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 38

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure ÏÏÏÏ 63

Item 9A. Controls and Procedures ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 63

Item 9B. Other InformationÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 64

PART III

Item 10. Directors and Executive Officers of the Registrant ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 64

Item 11. Executive Compensation ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 64

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related StockholderMatters ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 64

Item 13. Certain Relationships and Related TransactionsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 64

Item 14. Principal Accountant Fees and Services ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 64

PART IV

Item 15. Exhibits and Financial Statement Schedules ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 65

Signatures ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 70

Typically, the Company's fiscal year ends on the Friday nearest to June 30 and consists of 52 weeks. However,

approximately every six years, the Company reports a 53-week fiscal year to align its fiscal quarters with calendar quarters

by adding a week to its fourth fiscal quarter. The 2005 and 2003 fiscal years, which ended on July 1, 2005 and June 27,

2003, respectively, consisted of 52 weeks each. Fiscal year 2004, which ended on July 2, 2004, was a 53-week year.

Unless otherwise indicated, references herein to specific years and quarters are to the Company's fiscal years and

fiscal quarters, and references to financial information are on a consolidated basis.

The Company is a Delaware corporation that operates as the parent company of its hard disk drive business,

Western Digital Technologies, Inc., which was formed in 1970.

The Company's principal executive offices are located at 20511 Lake Forest Drive, Lake Forest, California 92630.

The Company's telephone number is (949) 672-7000 and its web site is http://www.westerndigital.com. The

information on the Company's web site is not incorporated in this report.

Western Digital», the Western Digital logo, WD Caviar», WD Raptor», WD Passport» and WD ScorpioTM are

trademarks of Western Digital Technologies, Inc. and/or its affiliates. All other trademarks mentioned are the property of

their respective owners.

2

PART I

Item 1. Business

General

Western Digital Corporation (the ""Company'' or ""Western Digital'' or ""WD'') designs, develops, manufactures

and sells hard disk drives. A hard disk drive is a device that stores data on one or more rotating magnetic disks to allow

fast access to data. Hard disk drives are one of the key components found in most computers and data storage

subsystems.

The Company's hard disk drives are used in desktop personal computers (""PCs''), notebook computers, enterprise

applications such as servers, workstations, network attached storage and storage area networks, and in consumer

electronics (""CE'') products such as personal/digital video recorders (""DVRs'') and satellite and cable set-top boxes

(""STBs''). In addition, the Company's hard disk drives are used in external hard disk drive products that feature high

speed buses such as 1394/FireWire/iLinkTM, Universal Serial Bus (""USB'') and Ethernet.

Hard disk drives provide non-volatile data storage, which means that the data is not lost when power is no longer

applied to the device. The Company's hard disk drive products currently include 3.5-inch and 2.5-inch form factor

drives. The 3.5-inch form factor drives have capacities ranging from 40 gigabytes (""GB'') to 400 GB, nominal rotation

speeds of 5400, 7200 and 10,000 revolutions per minute (""RPM''), and offer interfaces including Enhanced Integrated

Drive Electronics (""EIDE'') and Serial Advanced Technology Attachment (""SATA''). The 2.5-inch form factor drives

have capacities ranging from 40 GB to 80 GB, nominal rotation speed of 5400 RPMs, and offer the EIDE interface. In

addition, the Company has plans to enter the 1.0-inch hard disk drive market in the future. The Company anticipates

that 1.0 inch hard disk drive products could be used in a variety of handheld consumer devices such as MP3 players,

cameras, and cell phones.

The Company sells its products worldwide to original equipment manufacturers (""OEMs'') for inclusion in

computer systems or subsystems, and to distributors, resellers and retailers. The Company's hard disk drive products are

currently manufactured in Malaysia and Thailand. For geographical financial data, see the Company's Consolidated

Financial Statements and Note 9 thereto included in this Annual Report on Form 10-K.

Industry

Western Digital's primary business focus is the design, development, manufacture and sale of hard disk drives to

the desktop PC, mobile, enterprise and consumer electronics markets.

The Company believes based on industry data that historically the sale of personal computers and hard disk drives

were similar in volume, however, during the last five years, the Company believes the growth in hard disk drive sales has

outpaced growth in personal computer sales. For example, based on industry data the Company believes in calendar 2001

there were approximately 34% more hard disk drives sold in the market than personal computers. In contrast, in calendar

2004 there were approximately 61% more hard disk drives sold in the market than personal computers. The Company

believes that this accelerating growth of hard disk drive sales is driven primarily by the following:

‚ Alternative products such as consumer electronics products that use hard disk drives for the playing, retention,

and creation of digital content for personal use; the commercial market for hard disk drives used in consumer

electronic devices did not largely exist seven years ago and a strong growth opportunity for this market exists.

‚ The growth of the external hard disk drive market, which allows users to add additional hard disk drives to their

computers in a more convenient fashion allowing increased storage of data such as music or digital photographs.

‚ The increased use of multiple hard disk drives in personal computers for data safety and higher storage capacity.

Desktop PC Market.

Desktop PCs are used in a number of environments, ranging from homes to businesses and multi-user networks.

Software applications are used on desktop PCs for word processing, spreadsheet, desktop publishing, database

management, multimedia, entertainment and other related applications. Hard disk drives store both software applications

3

and the data used by these software applications. The Company believes that the demand for hard disk drives in the PC

market has grown in part due to:

‚ the overall growth of PC sales;

‚ the increasing needs of businesses and individuals to store larger amounts of data on their PCs;

‚ the continuing development of software applications to manage multimedia content; and

‚ the increasing use of broadband Internet, including downloading content from the Internet onto PC hard disk

drives.

In addition, the Company believes the rate of PC unit growth is affected by several factors, including maturing PC

markets in North America and Western Europe, an increase in first-time buyers of PCs in Eastern Europe and Asia, and

the lengthening of PC replacement cycles. For an additional discussion of changes in the PC market, see Part II, Item 7,

under the heading ""Risk Factors That May Affect Future Results.''

Mobile Computing Market.

The Company expects the mobile computing market, which is primarily notebook computers, to grow faster than

the desktop PC or enterprise markets in the next three years. The Company entered this market in October 2004 with

the introduction of its WD ScorpioTM product, a 2.5-inch form factor hard disk drive.

The Company believes that the demand for mobile drives has grown from approximately 16% of the overall hard

disk drive market in 2002 to 24% of the overall hard disk drive market in 2004. The Company believes that this growth

trend will continue as people continue to buy notebook computers in increasing numbers.

Enterprise Market.

The enterprise market for hard disk drives focuses on customers that make workstations, servers, network attached

storage, storage area networks, and other computing systems or subsystems. This market has been traditionally served by

hard disk drives that use the small-computer-systems-interface (""SCSI'') standard. Recently, however, SCSI hard disk

drives are being supplemented by SATA hard disk drives in certain enterprise storage applications. SATA is an interface

technology supported by industry standards. In most applications, SATA hard disk drives cost less than SCSI while

maintaining reliability, scalability and performance necessary for many mainstream enterprise applications.

The Company believes that the use of SATA hard disk drives in the enterprise hard disk drive market will continue

to increase. For example, during the past few years a new disk-based back-up application has emerged with high-capacity

SATA hard disk drives augmenting SCSI, tape and optical media. This new trend, popularly referred to as ""near-line''

storage, has created a growth market due to the ability of hard disk drives to back-up or access data more quickly than

tape or optical solutions, and to quickly retrieve critical back-up or near-line data. The increasing use of hard disk drives

in near-line storage applications is also being enhanced by the availability of SATA hard disk drive solutions, which are

more cost competitive as compared to SCSI hard disk drives.

In addition, SATA drives are also being used in unique clustering applications for databases, scientific computing,

web caching and electronic mail. These applications have become an important market for large capacity SATA hard disk

drives and the Company believes that this market will continue to consume a growing portion of the Company's highest

capacity hard disk drives in the next three years.

Consumer Electronics Market.

The use of hard disk drives in consumer electronic products has been a new growth area in recent years. Currently,

the three largest uses for hard disk drives in this area are as follows:

‚ the storing and playing of digital television content in applications such as personal video recorders;

‚ the storing and playing of audio content in applications such as MP3 players; and

‚ the use of hard disk drives in game consoles.

Since 1999, hard disk drive-based recorders of audio and video content have been available for use in home

entertainment systems. Commonly called personal video recorders (""PVRs'') or digital video recorders (""DVRs''), these

4

consumer devices offer the end-user enhanced features such as pausing live television, simplifying the process of recording

and cataloging recorded television programs and quickly forwarding or returning to any section of a recorded television

program. In addition, hard disk drives are being increasingly incorporated into DVD recorders to allow for PVR/DVR

functionality and faster recording of content onto removable DVDs. In general, the market for these products favor large

capacity hard disk drives, and there is a growing market for these products in Japan and North America, and strong

interest in Europe and the rest of Asia Pacific. The Company believes that growth in this market may increase the

demand for higher capacity hard disk drives.

The Company has plans to enter the 1.0-inch hard disk drive market in the future, and anticipates offering 1.0-inch

hard disk drives for use in CE products to store and play audio content. In addition, the Company believes that there may

be opportunities for growth in sales of 1.0-inch hard disk drives for use in future versions of cameras and cell phones. The

strong growth in demand for hard disk drive storage in CE products to store and play audio content increased

significantly in the third calendar quarter of 2004. The Company believes based on industry data that a total over

2 million hard disk drive based MP3 players were sold in the market for the third calendar quarter of 2004. The majority

of hard disk drives used in MP3 players are either 1.0-inch or 1.8-inch products. Sales of hard disk drive based MP3

players featuring 1.0-inch or 1.8-inch products continued with strong growth into calendar 2005.

For further discussion of the audio-video market, see Part II, Item 7, under the heading ""Risk Factors That May

Affect Future Results.''

Hard disk drives continue to be used in game consoles, although game console sales have fallen over the last four

years. Although the Company has provided hard disk drives for game consoles in the past, the overall market growth for

hard disk drives in game consoles continues to be challenged.

For an additional discussion of the video game market, see Part II, Item 7, under the heading ""Risk Factors That

May Affect Future Results.''

The External Hard Disk Drive Market.

Most new desktop PC systems are equipped with high-speed external interfaces, such as 1394/FireWire/i.Link,

USB or Ethernet. As a result, end users are able to supplement the storage space of their PC systems with the use of

external hard disk drive products that connect via these high-speed interfaces. External hard disk drive products are

commonly used for storing additional programs or multimedia content, or for backing up internal hard disk drives.

While the external hard disk drive market continues to be a small part of the overall hard disk drive market, the

Company believes that sales of external hard disk drives will continue to grow. In general, external storage may often be

the easiest, quickest or only way of adding additional storage capacity to either a notebook or desktop computer. In

addition, the Company believes that in the future there is opportunity for acceptance of external storage in CE products as

a way or expanding storage in these devices.

Other Market Opportunities.

The Company continuously evaluates opportunities to apply its knowledge of data storage technology beyond

current markets for hard disk drives. New business opportunities are evaluated for their direct impact on the Company's

ability to increase the sale of hard disk drives. The Company monitors the development of new markets related to data or

content storage and may, from time to time, offer new products or services to address appropriate new form factors,

interfaces or markets. Conversely, depending on the development of such markets and the Company's ability to achieve

its goals, the Company may, from time to time, withdraw from certain markets.

Products

The Company offers a broad line of hard disk drives designed for various markets. Western Digital's hard disk

drives are marketed under the WD Caviar», WD Raptor» and WD ScorpioTM brand names. These hard disk drives

service the desktop, enterprise, external hard disk drive and consumer electronics markets, and can be found in products

including but not limited to advanced performance desktop and workstations, gaming consoles, video surveillance

equipment, networking products, enterprise storage and notebook computers.

Consumer Electronics Products. The Company offers design capabilities and hard disk drive technologies for

consumer applications. The Company currently offers hard disk drive products designed for use in digital video recording

5

products such as personal video recorders (PVRs), digital video recorders (DVRs), and satellite and cable set-top boxes

(STBs). These products are designed to meet the unique requirements of this specialized storage-enabled market and the

hard disk drives deliver the characteristics CE manufacturers seek most Ì quiet operation, low temperature and power

consumption specifications, high reliability and optimized streaming capabilities. The Company also offers products for

the video game console market. In addition, the Company has plans to enter the 1.0-inch hard disk drive market in the

future. The Company anticipates that 1.0-inch hard disk drive products could be used in a variety of handheld consumer

devices such as MP3 players, cameras and cell phones.

Mobile Hard Disk Drive Products. Hard disk drives used in mobile products typically include 2.5-inch form factor

drives for notebook computers. Although the desktop PC market accounts for a majority of hard disk drive sales, unit

shipments of hard disk drives for notebook computers are increasing. In 2005, the Company introduced its WD Scorpio

hard disk drive family consisting of 2.5-inch form factor products with capacities ranging from 40 GB to 80 GB and a

nominal rotation speed of 5400 RPM. These products utilize the EIDE interface.

Desktop PC Hard Disk Drive Products. WD hard disk drives designed for the desktop PC market currently consist

of 3.5-inch form factor products with capacities ranging from 40 GB to 400 GB and nominal rotation speeds of 7200

RPM. These products utilize either the EIDE or SATA interfaces, providing high performance while retaining ease of use

and overall low cost of connection. The type of EIDE interface currently used in the Company's hard disk drives is

ATA/100, which signifies a burst data transfer rate of 100 megabytes per second, which is the maximum specified data

transition that can be sustained under ideal conditions. The SATA interface available in certain of the Company's hard

disk drives enable transfer rates of up to 300 megabytes per second.

Enterprise Hard Disk Drive Products. Western Digital currently offers multiple products to address enterprise

market needs, including the WD Raptor and Caviar RAID Edition (RE) hard disk drive lines. The WD Raptor line is a

10,000 RPM enterprise-class drive with the SATA interface for enterprise applications requiring high performance and

high reliability. The WD Caviar RE hard disk drive is a 7200 RPM drive with capacities ranging from 120 GB to 400

GB. The WD Caviar RE hard disk drive includes both SATA and EIDE interfaces and has enhanced reliability features

and ratings when contrasted to our desktop products. Both WD Raptor and WD Caviar RE drives may be used in, but

not limited to, applications such as databases, e-commerce and super computing in life science, oil and gas and similar

industries, business records management, e-mail, file serving, web serving, near-line storage, medical records, engineering

data management, video broadcasting and video security.

External Hard Disk Drive Products. Western Digital also sells a line of external hard disk drive products and

related adapters that are designed to accommodate external storage interfaces including 1394/FireWire/i.Link, USB and

Ethernet. In general, these interfaces provide a high-speed interface that can be used to add additional external, portable

storage capacity to desktop and laptop computers. Most new computers sold today include one or multiple of these high

speed external interfaces, thereby supporting the ability to quickly add external hard disk drive storage. One of Western

Digital's external hard disk drive products now shipping is the WD Passport, a 80GB 5400 RPM portable 2.5-inch hard

disk drive.

Technology and Product Development

Hard disk drives are used to record, store and retrieve digital data. Performance attributes of hard disk drives, such

as their ability to access and transmit data and storage capacity, are currently better than removable or floppy disks,

optical hard disk drives and tapes, and they are more cost effective than semiconductor technology. The primary measures

of hard disk drive performance include:

""Storage capacity'' Ì the amount of data that can be stored on the hard disk drive Ì commonly expressed in

gigabytes. As defined in the hard disk drive industry, a gigabyte means one billion bytes. A byte is a digital

character, typically comprised of eight bits. A bit is a binary digit, the smallest unit of information in a digital

system.

""Average seek time'' Ì the time needed to position the heads over a selected track on the disk surface Ì

commonly expressed in milliseconds.

6

""Internal data transfer rate'' Ì the sustained rate at which data is transferred to and from the disk Ì

commonly expressed in megabits per second. One megabit is equal to one million bits.

""Spindle rotational speed'' Ì the nominal rotational speed of the disks inside the hard disk drive Ì

commonly expressed in RPMs, revolutions per minute or latency. While the reference to spindle rotational speeds of

5400, 7200 and 10,000 RPMs is commonly used, in some cases these speeds are approximations.

""Acoustics'' Ì the sound power that is emitted while the hard disk drive is operating Ì commonly expressed

in decibels.

All of the Company's hard disk drive products employ similar technology. The main components of the hard disk

drive are the head disk assembly and the printed circuit board. The head disk assembly includes the head, media

(disks), head positioning mechanism (actuator) and spindle motor. These components are contained in a hard base

plate protective package in a contamination-controlled environment. The printed circuit board includes both standard

and custom integrated circuits, an interface connector to the host computer and a power connector.

The head disk assembly is comprised of one or more disks positioned around a spindle hub that rotates the disks by

a spindle motor. Disks are made of a smooth substrate to which a thin coating of magnetic materials is applied. Each disk

has a head suspended directly above it, which can read data from or write data to the spinning disk.

The integrated circuits on the printed circuit board typically include a drive interface and a controller. The drive

interface receives instructions from the computer, while the controller directs the flow of data to or from the disks and

controls the heads. The location of data on each disk is logically maintained in concentric tracks that are divided into

sectors. The computer sends instructions to the controller to read data from or write data to the disks based on logical

track and sector locations. Guided by instructions from the controller, the head stack assembly is pivoted and swung

across the disk by a head actuator or motor until it reaches the selected track of a disk, where the data is recorded or

retrieved.

Industry standard interfaces are utilized to allow the hard disk drive to communicate with the computer. Currently,

the primary interface for desktop PCs is EIDE, and the primary interface for enterprise systems is SCSI. As computer

performance continues to improve, the hard disk drive will need to deliver information faster than these interfaces can

handle. The Company believes that the desktop PC industry plans to transition to higher speed interfaces, such as SATA,

to handle the higher data transfer rates. The Company currently offers its WD Caviar products, 7200 RPM drives with

the SATA interface and featuring capacities as large as 400 GB. These products are designed for the PC, workstation,

server, and external storage markets. The Company believes that SATA is also becoming a more popular interface in the

enterprise market. Western Digital currently offers its WD Raptor hard disk drive, a 10,000 RPM enterprise-class drive

with the SATA interface, and the WD Caviar RE2 and RE hard disk drives, 7200 RPM drives manufactured to

enterprise-class standards and available with a SATA interface.

Storage capacity of the hard disk drive, as manufactured by Western Digital, is determined by the number of disks

and each disk's areal density, which is a measure of the amount of data that can be stored on the recording surface of the

disk. The higher the areal density, the more information can be stored on a single platter. As the areal density increases,

fewer disks and/or heads are required to achieve a given drive capacity, thus reducing product costs through reduced

component requirements.

Head technology is one of the variables affecting areal density. Historically, there have been rapid technological

changes resulting in several generations of head technology in a relatively short period of time. However, in recent years

the time has lengthened between changes in generations of head technology. Currently, the desktop hard disk drive

industry uses giant magnetoresistive head technology, which allows significantly higher storage capacities than the

previously utilized thin-film head technology. All of the Company's hard disk drive product offerings currently employ

giant magnetoresistive head technology. In addition, significant development efforts have been undertaken across the

industry to implement perpendicular recording technology. The Company anticipates using perpendicular recording

heads in certain products in the future.

The Western Digital product line generally leverages a common platform for various products within product

families with different capacities to serve the differing market needs. This platform strategy results in commonality of

components across different products within product families and, in some cases, across product families, which reduces

7

exposure to changes in demand, facilitates inventory management and allows the Company to achieve lower costs through

economies of scale purchasing. This platform strategy also enables computer manufacturer customers to leverage their

qualification efforts onto successive product models. The Company expects to continue to utilize this platform strategy as

it continues to develop products for the mobile market and the emerging markets for hard disk drives specifically

designed for handheld applications, such as digital music players and audio-video applications, such as digital video

recording devices.

In addition to the development of the overall hard disk drive, WD also spends considerable effort and expense in

the development of WD head technology used in the majority of its hard disk drive products. In general, the design and

manufacturing of WD heads consists of engineering and fabricating a read element for reading data from a disk, a write

element for writing data to a disk, and slider. The slider functions similar to an airplane wing and allows the read and

write elements to fly over the surface of the disk drive and to land, on either the disk substrate or a special ramp, when

power is not applied to the hard disk drive.

For an additional discussion of technological innovations, see Part II, Item 7, under the heading ""Risk Factors That

May Affect Future Results.''

Sales and Distribution

The Company sells its products globally to Original Equipment Manufacturers, or ""OEMs,'' distributors and

retailers. OEMs purchase the Company's hard disk drives and assemble them into the computer or other consumer

electronic systems they build. Distributors typically sell the Company's hard disk drives to small computer manufacturers,

dealers, systems integrators and other resellers. Retailers typically sell the Company's hard disk drive products directly to

end-users.

Original Equipment Manufacturers. Sales to OEMs accounted for 58%, 51% and 52% of the Company's revenue in

2005, 2004 and 2003, respectively. During 2005, the Company's major OEM customers included Dell and Hewlett-

Packard. During 2005 and 2004, sales to Dell accounted for 16% and 14%, respectively of the Company's revenue.

During 2003, sales to Dell and Hewlett-Packard accounted for 20% and 13% of revenue, respectively. The Company

believes that its success depends on its ability to maintain and improve its strong relationships with the leading OEMs.

OEMs evaluate and select their hard disk drive suppliers based on a number of factors, including overall quality and

reliability, storage capacities, performance characteristics, price, service and support, ease of doing business, and the

supplier's long-term financial stability. They typically seek to qualify two or more providers for each generation of hard

disk drives, and once an OEM has chosen its qualified hard disk drive vendors for a given product, it generally will

purchase hard disk drives from those vendors for the life of that product. To achieve success with OEMs qualifications, a

hard disk drive supplier must consistently offer hard disk drives featuring leading technology, quality, reliability and

acceptable capacity per disk. Suppliers must quickly achieve volume production of each new generation of high quality

and reliable hard disk drives. To quickly achieve high volume production, a hard disk drive supplier must have access to

flexible, high-capacity, high-quality manufacturing capabilities.

Many of the Company's OEM customers utilize just-in-time inventory management processes or supply chain

business models that combine ""build-to-order'' (in which the OEM does not build until there is a firm order) and

""contract manufacturing'' (in which the OEM contracts assembly work to a contract manufacturer who purchases

components and assembles the computer based on the OEM's instructions). For certain OEMs, the Company maintains a

base stock of finished goods inventory in facilities located near or adjacent to the OEM's operations.

For an additional discussion of the need to adapt to customers' business models and maintain customer satisfaction,

refer to Part II, Item 7, under the heading ""Risk Factors That May Affect Future Results.''

Distributors. The Company uses a select group of distributors to sell its products to small computer manufacturers,

resellers, dealers and systems integrators. Distributors accounted for approximately 36%, 42% and 40% of the Company's

revenue for 2005, 2004 and 2003, respectively. Distributors generally enter into non-exclusive agreements for specific

territories with the Company for purchase and redistribution of product. The Company grants its distributors limited

price protection rights.

8

Retailers. The Company sells its retail-packaged products directly to a select group of major retailers such as

computer superstores, warehouse clubs and computer electronics stores, and authorizes sales through distributors to

smaller retailers. Retailers accounted for approximately 6%, 7% and 8% of the Company's revenue for each of 2005,

2004 and 2003, respectively. The Company's current retail customer base is primarily in the United States, Canada and

Europe. The retail channel complements the Company's other sales channels while helping to build brand awareness for

the Company and its products. Retailers supply the aftermarket ""upgrade'' and data back-up sectors in which end-users

purchase and install products to upgrade their computers and externally store their data for back-up purposes. The

Company grants its retailers price protection and limited rights to return product on an inventory rotation basis. The

Company also sells its retail-packaged products through the Internet, at its web site.

The Company maintains sales offices in selected parts of the world including the major geographies of the Americas,

Asia Pacific, Europe and the Middle East. Field application engineering is provided to strategic computer manufacturer

accounts, and localized end-user technical support services are provided within the United States, Canada, Europe and

Asia. The Company's localized end-user technical support is currently supplied by employees and third party providers

through telephone support, and via the Company's web site.

The Company's international sales, which include sales to foreign subsidiaries of U.S. companies but do not include

sales to U.S. subsidiaries of foreign companies, represented 65%, 63% and 59% of the Company's revenue for 2005,

2004 and 2003, respectively. Sales to international customers may be subject to certain risks not normally encountered in

domestic operations, including exposure to tariffs and various trade regulations. See Part II, Item 7, under the heading

""Risk Factors That May Affect Future Results.''

For additional information concerning revenue recognition, sales by geographic region and significant customer

information, see Notes 1 and 9 of the Notes to Consolidated Financial Statements.

The Company's marketing and advertising functions are performed both internally and through outside firms.

Advertising, worldwide packaging and marketing materials are targeted to various reseller and end-user categories.

Western Digital utilizes both consumer media and, to a lesser extent, trade publications. The Company has programs

under which qualifying distributors and retailers are reimbursed for certain marketing expenditures. Western Digital also

maintains customer relationships by communicating with its resellers and providing end-users with information and

support through its web site.

Competition

The Company competes primarily with manufacturers of hard disk drives for desktop PC, mobile, enterprise and

CE products. The Company's competitors in the hard disk drive market include Seagate Technology, Maxtor

Corporation, Fujitsu Limited, Hitachi Global Storage Technologies, Samsung Electronics Incorporated and Toshiba

Corporation.

The hard disk drive industry is intensely competitive, with hard disk drive suppliers competing for sales to a limited

number of major customers. Hard disk drives manufactured by different competitors are highly substitutable due to the

industry mandate of technical form, fit and function standards. Hard disk drive manufacturers compete on the basis of

product quality and reliability, storage capacity, unit price, product performance, production volume capabilities, delivery

capability, leadership in time-to-market, time-to-volume and time-to-quality, service and support, and ease of doing

business. The relative importance of these factors varies between different customer and market segments. The Company

believes that it is generally competitive in all of these factors.

The Company believes that there are no substantial barriers for existing competitors to offer competing products.

Therefore, the Company believes that it cannot differentiate its hard disk drive products solely on attributes such as

storage capacity, buffer size or time-to-market. Accordingly, the Company differentiates itself by focusing on high

product quality and reliability, and designing and incorporating into its hard disk drives desirable product performance

attributes. Such performance attributes focus on seek times, data transfer rates, intelligent caching, failure prediction,

remote diagnostics, acoustics and data recovery. In addition, the Company emphasizes non-product related attributes,

including rapid response with its customers. Rapid response requires accelerated design cycles, customer delivery,

production flexibility and timely service and support, which contribute to customer satisfaction. The Company also relies

on the strength of the Western Digital brand name with value-added resellers and solution providers to whom the

9

Company sells its hard disk drive products directly and indirectly. The Company believes that trust in a manufacturer's

reputation and the establishment of strategic relationships have become important factors in the selection of a hard disk

drive, particularly in a rapidly changing technology environment.

Advances in magnetic, optical or other data storage technologies could result in competitive products that have

better performance or lower cost per unit of capacity than the Company's hard disk drive products. High-speed

semiconductor memory could compete with the Company's hard disk drive products in the future. Semiconductor

memory is much faster than magnetic hard disk drives, but currently is not competitive from a cost standpoint. Flash

memory, a non-volatile semiconductor memory, is currently much more costly and, while it has higher ""read''

performance attributes than hard disk drives, it has lower ""write'' performance attributes. Flash memory could become

competitive in the near future for applications requiring less storage capacity than that provided by hard disk drives.

For an additional discussion of competition, see Part II, Item 7, under the heading ""Risk Factors That May Affect

Future Results.''

Service and Warranty

Western Digital generally warrants its newly manufactured hard disk drives against defects in materials and

workmanship for periods of from one to five years from the date of sale depending on the type of product. The

Company's warranty obligation is generally limited to repair or replacement of the hard disk drive. The Company has

engaged third parties in Australia, Brazil, Canada, China, Germany, Hungary, India, Korea, Russia, Singapore, Thailand

and the United Arab Emirates to provide various levels of testing, processing and/or recertification of returned hard disk

drives for the Company's customers. In addition, the Company processes, tests and recertifies returned hard disk drives at

its own facility in the United States.

Manufacturing

Western Digital believes that it has significant know-how, unique product manufacturing process, and human

resources to continue to be successful and have the ability to grow, as necessary, its manufacturing operations. To be

competitive, Western Digital must manufacture high quality hard disk drives with industry leading time-to-volume

production at competitive unit costs. The Company strives to maintain manufacturing flexibility, high manufacturing

yields, and reliable products, while insisting that its suppliers provide high-quality components at competitive prices. The

critical elements of Western Digital's hard disk drive production are high volume, low cost assembly and testing, and

establishment and maintenance of key supplier relationships. By establishing close relationships with its strategic

component suppliers, the Company believes it is able to access best-of-class manufacturing quality. In addition, the

Company believes that its sourcing strategy currently enables it to have the business flexibility needed to select the highest

quality low cost of ownership suppliers as product designs and technologies evolve.

Hard disk drive manufacturing is a complex process involving the assembly of precision components with narrow

tolerances and thorough testing. The assembly process occurs in a ""clean room'' environment that demands skill in

process engineering and efficient utilization of the ""clean room'' layout in order to reduce the high operating costs of this

manufacturing environment. The Company's clean room manufacturing process consists of modular production units,

each of which contains a number of work cells.

The Company manufactures hard disk drives in Malaysia and Thailand. The Company continually evaluates its

manufacturing processes in an effort to increase productivity, sustain and improve quality and decrease manufacturing

costs. For example, during 2002, in response to an increase in demand and in order to capitalize on the local supplier

base, the Company completed the acquisition of a Thailand manufacturing facility. The Company continually evaluates

which steps in the manufacturing process would benefit from automation and how automated manufacturing processes

can improve productivity and reduce manufacturing costs.

In July 2003, the Company purchased substantially all of the assets of Read-Rite Corporation, formerly one of the

Company's suppliers of heads, including its wafer fabrication equipment in Fremont, California and its slider fabrication

facility in Bang Pa-In, Thailand. These assets are upgraded and enhanced as necessary to meet the demands of newer

technologies consistent with the Company's hard disk drive production facilities. The Company uses these facilities to

10

design and manufacture a substantial portion of the heads, head gimbal assemblies (""HGAs'') and head stack

assemblies (""HSAs'') for use in hard disk drives it manufactures.

For an additional discussion of manufacturing, see Part II, Item 7, under the heading ""Risk Factors That May

Affect Future Results.''

Research and Development

The Company devotes substantial resources to development of new products and improvement of existing products.

The Company focuses its engineering efforts on coordinating its product design and manufacturing processes in order to

bring its products to market in a cost-effective and timely manner. Research and development expenses totaled

$239 million, $201 million and $135 million in 2005, 2004 and 2003, respectively.

For further discussion of product development, see Part II, Item 7, under the heading ""Risk Factors That May

Affect Future Results.''

Materials and Supplies

The principal components currently used in the manufacture of the Company's hard disk drives are magnetic heads

and related HSAs, media, controllers, spindle motors and mechanical parts used in the head disk assembly. In addition to

custom semiconductor devices, the Company also uses standard semiconductor components such as logic, memory and

microprocessor devices obtained from other manufacturers and a wide variety of other parts, including printed circuit

boards, connectors, cables, and other interconnect technology.

The Company designs and manufactures a substantial portion of the heads required for the hard disk drives it

manufactures. The Company also purchases a portion of these components from third party suppliers. During 2005, the

Company bought giant magnetoresistive heads from ALPS Electric Co., Ltd. and TDK Corporation's subsidiary, SAE

Magnetics Ltd.

The Company acquires all of the remaining components for its products from third party suppliers. The Company

generally obtains multiple suppliers for each of its component requirements, however, in some instances for business

reasons the Company is sole sourced. For example, during 2005, the Company's media requirements were purchased

from several outside vendors including Fuji Electric, Hoya Corp., Komag Inc. and Showa Denko KK. The Company has

volume purchase agreements with Komag Inc. and Showa Denko KK under which the Company is obligated to purchase

from each supplier, and each supplier is obligated to sell to the Company, certain specified media volumes in accordance

with the terms in the agreements.

Some components are currently sole-sourced. For example, some custom integrated circuit devices for certain

products are currently sole-sourced from STMicroelectronics and Marvell Semiconductor, Inc. Because of their custom

nature, these products require significant design-in periods and long lead times. There has been a trend in integrated

circuit design toward increased integration of various separate circuits. The Company expects this trend to continue in the

area of custom integrated circuits for hard disk drives.

For an additional discussion of component supplies, see Part II, Item 7, under the heading ""Risk Factors That May

Affect Future Results.''

Backlog

Historically, a substantial portion of the Company's orders has been for shipments of hard disk drives within 30 to

60 days of the placement of the order. The Company generally negotiates pricing, order lead times, product support

requirements and other terms and conditions prior to receiving a computer manufacturer's first purchase order for a

product. Customers' purchase orders typically may be canceled with relatively short notice to the Company, with little or

no cost to the customer, or modified by customers to provide for delivery at a later date. In addition, many of the

Company's sales to OEMs are made under just-in-time delivery contracts that do not generally require firm order

commitments by the customer until the time of sale. Instead, the Company receives a periodic forecast of requirements

from the customer, and the customer is invoiced upon shipment of the product from the just-in-time warehouse.

11

Therefore, backlog information as of the end of a particular period is not necessarily indicative of future levels of the

Company's revenue and profit and may not be comparable to earlier periods.

Patents, Licenses and Proprietary Information

The Company owns numerous patents and has many patent applications in process. The Company believes that,

although its patents and patent applications have considerable value, the successful manufacturing and marketing of its

products depends primarily upon the technical and managerial competence of its personnel. Accordingly, the patents held

and applied for do not assure the Company's future success.

In addition to patent protection of certain intellectual property rights, the Company considers elements of its

product designs and processes to be proprietary and confidential. The Company believes that its non-patented intellectual

property, particularly some of its process technology, is an important factor in its success. Western Digital relies upon

non-disclosure agreements and contractual provisions and a system of internal safeguards to protect its proprietary

information. Despite these safeguards, there is a risk that competitors may obtain and use such information. The laws of

foreign jurisdictions in which the Company conducts business also may provide less protection for confidential

information than the United States.

The Company relies on certain technology that is licensed from other parties in order to manufacture and sell its

products. The Company believes that it has adequate cross-licenses and other agreements in place in addition to its own

intellectual property portfolio to compete successfully in the hard disk drive industry.

For additional discussion of intellectual property, see Part II, Item 7, under the heading ""Risk Factors That May

Affect Future Results.''

Environmental Regulation

The Company is subject to a variety of regulations in connection with its operations. It believes that it has obtained

or is in the process of obtaining all necessary environmental permits for its operations.

Employees

As of July 1, 2005, the Company employed a total of 23,161 employees worldwide. This represents an increase in

headcount of approximately 33% since July 2, 2004 and an increase of approximately 101% since June 27, 2003. The

increase is primarily the result of increased production in the Company's manufacturing facilities, the Company's

expansion of its product offerings and the Company's acquisition of Read-Rite's assets in July 2003.

Many of the Company's employees are highly skilled, and the Company's continued success depends in part upon

its ability to attract and retain such employees. Accordingly, the Company offers employee benefit programs, which it

believes are, in the aggregate, approximately comparable to those offered by its competitors. Despite these programs, the

Company has, along with most of its competitors, experienced difficulty at times in hiring and retaining certain skilled

personnel. In addition, the Company has utilized consultants and contract personnel to fill these needs until full-time

employees could be recruited. The Company has never experienced a work stoppage, none of its domestic employees are

represented by a labor organization, and the Company considers its employee relations to be good.

Available Information

The Company maintains an Internet web site at http://www.westerndigital.com. The Company's Annual Report

on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to reports filed

pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, are available on the

Company's web site at http://www.westerndigital.com, free of charge, as soon as reasonably practicable after these

reports are filed electronically with the Securities and Exchange Commission (the ""SEC''). Any materials the Company

files with the SEC are available at the SEC's Public Reference Room at 450 Fifth Street, NW, Washington, DC 20549.

Additional information about the operation of the Public Reference Room can also be obtained by calling the SEC at

1-800-SEC-0330. In addition, the SEC maintains a web site at http://www.sec.gov that contains reports, proxy and

information statements, and other information regarding issuers that file electronically with the SEC, including Western

Digital.

12

Executive Officers of the Registrant

The names, ages and positions of all of the executive officers of the Company as of August 26, 2005 are listed

below, followed by a brief account of their business experience during the past five years. Executive officers are normally

appointed annually by the Board of Directors at a meeting of the directors immediately following the Annual Meeting of

Shareholders. There are no family relationships among these officers nor any arrangements or understandings between any

officer and any other person pursuant to which an officer was selected.

Name Age Position

Matthew E. MassengillÏÏÏÏÏÏÏÏÏÏÏ 44 Chairman and Chief Executive Officer

Arif Shakeel ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 50 President and Chief Operating Officer

John F. Coyne ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 55 Executive Vice President, Worldwide Operations

Raymond M. Bukaty ÏÏÏÏÏÏÏÏÏÏÏÏ 48 Senior Vice President, Administration, General Counsel andSecretary

Stephen D. MilliganÏÏÏÏÏÏÏÏÏÏÏÏÏ 42 Senior Vice President and Chief Financial Officer

Hossein Moghadam ÏÏÏÏÏÏÏÏÏÏÏÏÏ 61 Senior Vice President, Research and Development

Mr. Massengill joined the Company in 1985 and has served in various executive capacities. From October 1999

until January 2000, he served as Chief Operating Officer. Mr. Massengill served as President of the Company from

January 2000 until January 2002, and he was appointed Chief Executive Officer in January 2000. He assumed the

additional role of Chairman of the Board of Directors in November 2001.

Mr. Shakeel joined the Company in 1985 and has served in various executive capacities. In February 2000, he

became Executive Vice President and General Manager of Hard disk drive Solutions. He was promoted to Executive Vice

President and Chief Operating Officer in April 2001, and served in that position until promoted to his current position

of President in January 2002.

Mr. Coyne joined the Company in 1983 and has served in various executive capacities. In November 2002,

Mr. Coyne was promoted to Senior Vice President, Worldwide Operations. He was promoted to Executive Vice

President, Worldwide Operations, in June 2005.

Mr. Bukaty joined the Company in 1999 as Vice President, Corporate Law. Mr. Bukaty was promoted to Vice

President, General Counsel and Secretary in March 2002, and to Senior Vice President in January 2004, and assumed his

current position as Senior Vice President, Administration, General Counsel and Secretary in October 2004.

Mr. Milligan joined the Company in September 2002 as Vice President, Finance. He was appointed Senior Vice

President and Chief Financial Officer in January 2004. Prior to joining the Company, Mr. Milligan served in a variety of

senior finance capacities at Dell between April 1997 and September 2002, including Assistant Controller, European

Controller, North European Finance Director, Director of Finance for the Americas, and Controller for Dell Financial

Services.

Dr. Moghadam joined the Company in October 2000 as Vice President, Engineering and site manager of the

Company's San Jose facility. He was appointed Senior Vice President, Research and Development in November 2004.

On August 25, 2005 the Company announced that Arif Shakeel will become chief executive officer of the Company

on October 1, 2005. Mr. Shakeel will retain the title of president when he becomes CEO. Chairman Matt Massengill will

relinquish the CEO title but remain actively engaged as executive chairman of the board and in relationships with

shareholders and other strategic constituents.

Item 2. Properties

The Company's corporate headquarters are located in Lake Forest, California. The Lake Forest facilities consist of an

aggregate of 256,789 square feet of leased space and house the Company's management, research and development,

administrative and sales personnel. In addition, the Company leases facilities in Fremont, California, consisting of

approximately 213,067 square feet, that are used for head wafer fabrication, research and development and warehousing.

The Company also leases approximately 234,693 square feet in San Jose, California primarily for research and

development activities. In addition, the Company leases one facility in Irvine, California, which consists of 59,213 square

13

feet and is used as a hard disk drive return and refurbishing center. The Company also leases office space in various other

locations throughout the world primarily for sales and technical support.

Western Digital owns a 633,077 square foot manufacturing facility in Kuala Lumpur, Malaysia. The Company also

owns a manufacturing facility in Pathumthani, Thailand, consisting of approximately 232,500 square feet. In addition,

in July 2003 the Company acquired a facility in Bang Pa-In, Thailand, consisting of three buildings with an aggregate of

433,744 square feet, which is used for slider fabrication, the assembly of HGAs and HSAs, and research and

development.

The Company believes its present facilities are adequate for its current needs, although the process of upgrading its

facilities to meet technological and market requirements is expected to continue. New manufacturing facilities generally

can be developed and become operational within approximately nine to eighteen months should the Company require

such additional facilities.

Item 3. Legal Proceedings

See Part II, Item 8, Notes to Consolidated Financial Statements, Note 6.

Item 4. Submission of Matters to a Vote of Security Holders

No matters were submitted to a vote of security holders during the fourth quarter of 2005.

14

PART II

Item 5. Market for Registrant's Common Equity, Related Stockholder Matters, and IssuerPurchases of Equity Securities

Western Digital's common stock is listed on the New York Stock Exchange, Inc. (""NYSE'') under the symbol

""WDC''. The approximate number of holders of record of common stock of the Company as of August 26, 2005 was

2,673.

The Company has not paid any cash dividends on its common stock and does not intend to pay any cash dividends

on common stock in the foreseeable future. The Company's $125 million credit facility prohibits the Company from

paying cash dividends on its common stock.

The high and low sales prices of the Company's common stock, as reported by the NYSE, for each quarter of 2005

and 2004 are as follows:

First Second Third Fourth

2005

HighÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 9.13 $11.00 $13.12 $16.10

LowÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 6.39 7.95 9.84 11.64

2004

HighÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $14.00 $14.95 $13.55 $11.69

LowÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 8.44 10.20 9.64 7.87

The following table provides information about repurchases by the Company of its common stock during the

quarter ended July 1, 2005:Total Number of Maximum Value of

Shares Purchased as Shares that May YetTotal Number Part of Publicly be Purchased

of Shares Average Price Announced Under thePurchased Paid per Share Program(1) Program(2)

April 2, 2005 Ì April 29, 2005 ÏÏÏÏÏ 839,300 $12.67 839,300 $50,288,127

April 30, 2005 Ì May 27, 2005 ÏÏÏÏ Ì $ Ì Ì $50,288,127

May 28, 2005 Ì July 1, 2005 ÏÏÏÏÏÏ 824,000 $13.34 824,000 $39,297,114

TotalÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 1,663,300 $13.00 1,663,300 $39,297,114

(1) Represents shares purchased in open-market transactions.

(2) On May 5, 2004, the Company announced that its Board of Directors had authorized the Company to repurchase

up to $100 million of the Company's common stock in open market transactions. The program does not have an

expiration date.

15

Item 6. Selected Financial Data

Financial Highlights

This selected consolidated financial data should be read together with the Consolidated Financial Statements and

related Notes contained in this report and in the subsequent reports filed with the SEC, as well as the section of this

report and the other reports entitled ""Management's Discussion and Analysis of Financial Condition and Results of

Operations.''

Years Ended

July 1, July 2, June 27, June 28, June 29,2005 2004 2003 2002 2001

(in millions, except per share and employee data)

Revenue, netÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $3,639 $3,047 $2,719 $2,151 $1,953

Gross margin ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 590 $ 462 $ 443 $ 282 $ 208

Income (loss) from continuing operations ÏÏÏÏÏÏÏÏÏÏÏÏ $ 198 $ 151 $ 182 $ 53 $ (52)

Per share income (loss) from continuing operations:

BasicÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ .96 $ .74 $ .93 $ .28 $ (.31)

DilutedÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ .91 $ .70 $ .89 $ .28 $ (.31)

Working capital ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 363 $ 270 $ 238 $ 37 $ 45

Total assets ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $1,589 $1,159 $ 866 $ 637 $ 508

Long-term debtÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 33 $ 53 $ Ì $ Ì $ 112

Shareholders' equity ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 702 $ 488 $ 327 $ 103 $ 7

Number of employeesÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 23,161 17,376 11,508 9,550 7,909

No cash dividends were paid for the years presented.

Item 7. Management's Discussion and Analysis of Financial Condition and Results ofOperations

Forward-Looking Statements

This report contains forward-looking statements within the meaning of the federal securities laws. The statements

that are not purely historical should be considered forward-looking statements. Often they can be identified by the use of

forward-looking words, such as ""may,'' ""will,'' ""could,'' ""project,'' ""believe,'' ""anticipate,'' ""expect,'' ""estimate,''

""continue,'' ""potential,'' ""plan,'' ""forecasts,'' and the like. Statements concerning current conditions may also be

forward-looking if they imply a continuation of current conditions. Examples of forward-looking statements include, but

are not limited to, statements concerning: the growth of unit sales of desktop PCs; growth in demand for and unit

shipments of hard disk drives in the desktop PC, CE (including multi-media applications, PVR and DVR), and mobile

markets; growth of revenue from sales of hard disk drives in the desktop PC market; increase in sales of notebook systems

and the Company's on-going volume ramp of its Scorpio 2.5-inch hard disk drives; increase in the demand for desktop

PC hard disk drives in emerging economies such as India and China; the Company's expansion into the CE market; the

growth rate of the mobile computing market relative to the desktop PC market; expansion of the SATA interface in

desktop PCs and growth of SATA interfaces in enterprise hard disk drives; increase in use of hard disk drives in near line

storage applications; growth of the market for enterprise and other non-desktop PC applications of 3.5-inch form factor

hard disk drives; growth of the external hard disk drive market and acceptance of external storage in consumer electronics

products; increase in demand for higher capacity hard disk drives; the Company's planned entrance into 1.0-inch hard

disk drive market and use of hard disk drives in consumer products; the Company's planned use of perpendicular

recording in certain products; trends in the area of custom integrated circuits for hard disk drives; increase in areal density

(the measure of storage per disk) and decrease in areal density growth rate; the Company's expectations regarding

traditional seasonal demand trends for the hard disk drive industry in the September 2005 quarter; the Company's

expectations regarding its stock repurchase program; the Company's expectations regarding capital expenditures for 2006

and operating expenses for the September 2005 quarter; the Company's beliefs regarding the sufficiency of its cash, cash

equivalents and short-term investments to meet its working capital needs; the Company's expectations regarding its

utilization of its liquidity and cash flows to improve the efficiency and capability of its existing hard disk drive and head

manufacturing operations; and the Company's expectations regarding the impact of new accounting standards.

16

Forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially

from those expressed in the forward-looking statements. Readers are urged to carefully review the disclosures made by the

Company concerning risks and other factors that may affect the Company's business and operating results, including

those made in this report under the caption ""Risk Factors That May Affect Future Results'' as well as the Company's

other reports filed with the SEC. Readers are cautioned not to place undue reliance on these forward-looking statements,

which speak only as of the date hereof. The Company undertakes no obligation to publish revised forward-looking

statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Unless otherwise indicated, references herein to specific years and quarters are to the Company's fiscal years and

fiscal quarters.

The Company

Western Digital Corporation designs, develops, manufactures and sells hard disk drives. A hard disk drive is a

device that stores data on one or more rotating magnetic disks to allow fast access to data. Hard disk drives are one of the

key components found in most computers and data storage subsystems.

The Company's hard disk drives are used in desktop personal computers (""PCs''), notebook computers, enterprise

applications such as servers, workstations, network attached storage and storage area networks, and in consumer

electronics (""CE'') products such as personal/digital video recorders (""DVRs'') and satellite and cable set-top boxes

(""STBs''). In addition, the Company's hard disk drives are used in external hard disk drive products that feature high

speed buses such as 1394/FireWire/iLinkTM, Universal Serial Bus (""USB'') and Ethernet.

Hard disk drives provide non-volatile data storage, which means that the data is not lost when power is no longer

applied to the device. The Company's hard disk drive products currently include 3.5-inch and 2.5-inch form factor

drives. The 3.5-inch form factor drives have capacities ranging from 40 gigabytes (""GB'') to 400 GB, nominal rotation

speeds of 5400, 7200 and 10,000 revolutions per minute (""RPM''), and offer interfaces including Enhanced Integrated

Drive Electronics (""EIDE'') and Serial Advanced Technology Attachment (""SATA''). The 2.5-inch form factor drives

have capacities ranging from 40 GB to 80 GB, nominal rotation speed of 5400 RPMs, and offer the EIDE interface. In

addition, the Company has plans to enter the 1.0-inch hard disk drive market in the future. The Company anticipates

that 1.0 inch hard disk drive products could be used in a variety of handheld consumer devices such as MP3 players,

cameras, and cell phones.

The Company sells its products worldwide to original equipment manufacturers (""OEMs'') for inclusion in

computer systems or subsystems, and to distributors, resellers and retailers. The Company's hard disk drive products are

currently manufactured in Malaysia and Thailand. For geographical financial data, see the Company's Consolidated

Financial Statements and Note 9 thereto included in this Annual Report on Form 10-K.

Market Overview

For calendar year 2004, the Company believes that the total market for hard disk drives was more than 300 million

units, or almost $24 billion. Over half of these unit shipments were to the desktop PC market. Thus, total hard disk

drive unit growth depends greatly on developments in the PC market. WD believes that the demand for hard disk drives

in the PC market will continue to grow in part due to:

‚ the overall growth of PC sales in established markets;

‚ the growth in emerging economies, such as India and China, driving the increased deployment of personal

computers;

‚ the increasing needs of businesses and individuals to store larger amounts of data on their PCs;

‚ the increasing sales of mobile computers that may have shorter replacement cycles and/or additional sales for

individuals to have both a desktop and a mobile computer;

‚ the continuing development of software applications to manage multimedia content; and

‚ the increasing use of broadband Internet, including downloading content from the Internet onto PC hard disk

drives.

17

The Company believes the rate of hard disk drive unit growth in the desktop PC market is affected by several

factors, including maturing PC markets in North America and Western Europe, an increase in first-time buyers of PCs in

Eastern Europe and Asia, the lengthening of PC replacement cycles and an increasing preference for notebook systems.

The Company expects that the mobile computing market, which is primarily notebook computers, to grow faster

than the desktop PC market due to customer preference in the next three years. Western Digital entered the mobile hard

disk drive market in October 2004, commencing volume production of its WD ScorpioTM family of 2.5-inch hard disk

drives for notebooks.

As the market for consumer applications expands, additional investments by the Company will be required. For

example, CE products such as handheld digital audio players currently utilize sub-2.5-inch form factor hard disk drives.

In January 2005, Western Digital announced it has plans to enter the miniature hard disk drive market with a 1.0-inch

6-gigabyte product. In addition, while CE products may require hard disk drives that are similar in nature to desktop

hard disk drives, these products have often required specialized features or functions driving additional development

versus desktop products.

The enterprise market for hard disk drives focuses on customers that make workstations, servers, network attached

storage devices, storage area networks, and other computing systems or subsystems. Western Digital serves this market

through its application of the SATA interface. The SATA interface contains many of the same benefits of the small-

computer-systems-interface, or SCSI Ì the predominant interface currently used in most enterprise hard disk drive

applications. The Company believes that the use of the SATA interfaces in enterprise hard disk drives is growing.

Results of Operations

Fiscal 2005 Overview

In 2005, Western Digital's net revenue increased by 19% to $3.6 billion on unit shipments of 61.4 million as

compared to 48.3 million in 2004. In 2005, 21% of WD's revenue was derived from non-desktop PC sources including

CE products, enterprise applications, notebook PCs and retail sales as compared to 14% in 2004. Gross margin increased

to 16.2% from 15.2% in 2004. Operating income increased by $42 million to $197 million, which included the impact

of a $19 million charge for the settlement of a patent infringement lawsuit. Operating margins increased to 5.4% as a

percentage of net revenue in 2005 compared with 5.1% in 2004. Western Digital generated $461 million in cash flow

from operations in 2005 compared with $190 million in 2004, finishing the year with $598 million in cash and short-

term investments, an increase of $221 million from the prior year.

Historically, industry unit shipments have increased 5% to 10% between the June and September quarters. The

Company anticipates traditional seasonal demand trends for the hard disk drive industry in the September 2005 quarter.

WD also expects to continue to benefit from its growing participation in the CE market and the on-going volume ramp

of its Scorpio 2.5-inch hard disk drives.

Summary of 2005, 2004 and 2003 Comparison

The following table sets forth, for the periods indicated, summary information from the Company's statements of

income (in millions).

Years Ended

July 1, 2005 July 2, 2004 June 27, 2003

Revenue, netÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $3,639 100.0% $3,047 100.0% $2,719 100.0%

Gross margin ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 590 16.2 462 15.2 443 16.3

Operating expenses ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 393 10.8 307 10.1 256 9.4

Operating income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 197 5.4 155 5.1 187 6.9

Net interest and other income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 5 0.2 Ì 0.0 3 0.0

Income before income taxes ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 202 5.6 155 5.1 190 7.0

Income tax expenseÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 4 0.1 4 0.1 8 0.3

Net incomeÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 198 5.5 151 5.0 182 6.7

18

Net Revenue

Net revenue was $3.6 billion for 2005, an increase of 19% or $592 million from 2004. Total unit shipments

increased to 61.4 million for the year as compared to 48.3 million for the prior year. This unit increase resulted from the

Company's higher desktop market share, stronger overall demand for hard disk drives in the desktop PC market and

WD's increasing focus on the non-desktop PC market. For example, WD shipped 6.6 million units to the CE market in

2005 as compared to 2.8 million units in 2004. The growth in total unit shipments was partially offset by a $4 per unit

decline in average selling prices (""ASPs'') to $59 per unit for 2005.

Revenue contribution by geographic region for 2005 was 38% from the Americas, 29% from Europe and 33% from

Asia compared to 41%, 30% and 29%, respectively, for 2004 and 48%, 30% and 22%, respectively, for 2003. These

changes reflect the Company's continued focus on revenue growth in emerging geographic markets, primarily in Asia.

Revenue contribution by sales channel for 2005 was 58% from OEMs, 36% from distributors and 6% from the

retail channel, compared to 51%, 42% and 7%, respectively, for 2004 and 52%, 40% and 8%, respectively for 2003.

WD's revenue contribution from OEM's increased in 2005 due to higher sales to the non-desktop PC markets, which are

serviced primarily by OEM's.

Net revenue increased $328 million, or 12%, in 2004 from 2003. This increase in net revenue was primarily due to

the Company's improved market share as well as an increase in demand for hard disk drives in the PC market. Unit

shipments increased to 48.3 million in 2004 from 39.7 million in 2003, while ASPs decreased to $63 per unit in 2004

from $68 per unit in 2003.

Gross Margin

Gross margin percentage increased to 16.2% for 2005 from 15.2% for 2004. The Company's 2004 gross margin

was impacted by start-up expenses and other charges totaling $18 million relating to the Company's head manufacturing

operations acquired in July 2003. The increase in gross margin percentage over the prior year was also impacted by

continuing improvements in quality, manufacturing cost efficiencies and product mix, partially offset by unit price

declines. The gross margin percentage for 2003 was 16.3%, which included the impact of a $19 million charge for the

settlement of litigation. The decrease in gross margin percentage from 2003 to 2004 was primarily a result of the

$18 million of start-up expenses incurred in 2004 relating to the acquisition of the Company's head manufacturing

operations as well as aggressive pricing pressures. WD was able to partially offset the 2004 impact of these pricing

conditions and start-up related costs with the ongoing accretive benefit of its head manufacturing operations.

Operating Expenses

Total operating expenses, consisting of research and development (""R&D'') and selling, general and administrative

(""SG&A''), were 10.8% of net revenue in 2005, as compared to 10.1% of net revenue in 2004 and 9.4% of net revenue

in 2003. Operating expenses are expected to increase slightly for the first fiscal quarter of 2006 as a result of the

Company's continued investment in the expansion of its product and technology portfolio and the costs associated with

expensing stock options.

R&D expense was $239 million, $201 million and $135 million for 2005, 2004 and 2003, respectively. The

increase of $38 million in R&D expense in 2005 over 2004 was primarily related to development of new product

platforms in support of WD's entry into new markets, expenditures for advanced head technologies and an increase of

$26 million in employee incentive compensation programs. The increase of $66 million in R&D in 2004 over 2003 was

due to head-design, mobile and enterprise platform development, as well as a $26 million charge for acquired in-process

research and development related to the Read-Rite asset acquisition.

SG&A expense was $154 million, $106 million and $121 million for 2005, 2004 and 2003, respectively. The

$48 million increase in SG&A expense in 2005 from 2004 was primarily due to an expansion of sales resources to

support increasing PC demand in certain geographic regions and the growing mobile and CE markets, an increase of

$15 million in employee incentive compensation programs and a $19 million charge for the settlement of a patent

infringement lawsuit. The $15 million decrease in SG&A expense in 2004 from 2003 was primarily related to a

reduction in employee incentive compensation programs and continuing cost reductions.

19

Interest and Other Income

Net interest and other income was $5 million, $0 and $3 million in 2005, 2004 and 2003, respectively. This

includes net investment gains of $4 million in 2003. Excluding these net gains, net interest and other income

(expense) was $5 million, $0 and ($1) million in 2005, 2004 and 2003, respectively. The increase in net interest

income in 2005 over 2004 was primarily due to a higher average cash and short-term investments balance as well as an

increase in the rates of return on investments, yielding higher interest income in 2005 as compared to 2004. The increase

in net interest income in 2004 over net interest expense in 2003 was primarily due to the Company's redemption of its

convertible debentures during the third quarter of 2003, resulting in lower interest expense in 2004.

Income Tax Expense

Income tax expense was $4 million, $4 million and $8 million in 2005, 2004 and 2003, respectively. Tax expense

as a percentage of income before taxes was 1.9%, 2.5% and 4.0% for 2005, 2004 and 2003, respectively. Differences

between the effective tax rates and the U.S. Federal statutory rate are primarily due to tax holidays in Malaysia and

Thailand that expire at various times ranging from 2008 to 2019. The 2005 effective tax rate benefited by approximately

0.7% from the favorable resolution of certain tax contingencies. The decrease in income tax expense from 2003 to 2004 is

primarily related to lower overall earnings in 2004 and a more favorable mix of earnings within certain tax jurisdictions.

Liquidity and Capital Resources

Western Digital ended fiscal 2005 with total cash, cash equivalents and short-term investments of $598 million, an

increase of $220 million from July 2, 2004. The Company's investment policy is to manage its investment portfolio to

preserve principal and liquidity while maximizing return through the full investment of available funds. A large portion

of Western Digital's available funds is invested in auction rate securities, which are short-term investments in bonds with

original maturities greater than 90 days. The following table summarizes the results of the Company's statements of cash

flows for the three-year periods ended July 1, 2005, July 2, 2004 and June 27, 2003.

Years Ended

July 1, July 2, June 27,2005 2004 2003

Net cash flow provided by (used for):

Operating activities ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 461 $ 190 $258

Investing activities ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (314) (259) (59)

Financing activities ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (7) 21 (30)

Net increase (decrease) in cash and cash equivalents ÏÏÏÏÏÏÏÏÏÏ $ 140 $ (48) $169

Operating Activities

Net cash provided by operating activities during 2005 was $461 million as compared to $190 million during 2004

and $258 million for 2003. Cash flow from operations consists of net income, adjusted for non-cash charges, plus or

minus working capital changes. This represents the Company's principal source of cash. Net cash provided by working

capital changes was $128 million for 2005 as compared to net cash used to fund working capital of $89 million for 2004

and net cash provided by working capital of $45 million for 2003.

20

Western Digital's working capital requirements depend upon the effective management of its cash conversion cycle,

which measures how quickly a company can convert its products into cash through sales. The cash conversion cycles for

2005, 2004 and 2003 were as follows:

Years Ended

July 1, July 2, June 27,2005 2004 2003

Days sales outstandingÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 40 39 31

Days in inventory ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 16 20 16

Days payables outstandingÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (65) (61) (56)

Cash conversion cycleÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (9) (2) (9)

The improvement in the cash conversion cycle for 2005 was primarily due to better alignment in the timing of the

Company's inventory build and sales schedules. Cash flow from operations for 2005 also benefited from an increase in

other expenses that did not require the use of cash in 2005. The decrease in the 2004 cash conversion cycle as compared

to 2003 was primarily due to a higher accounts receivable balance associated with changes in the Company's mix of

customers and higher work in process inventory associated with the head manufacturing operations. Cash flow from

operations for 2004 was also impacted by the payment of a $45 million litigation settlement.

Investing Activities

Net cash used in investing activities for 2005 was $314 million as compared to $259 million for 2004 and

$59 million for 2003. During 2005, cash used in investing activities consisted of $233 million for capital expenditures

and $81 million for short-term investments. The net cash used in investing activities for 2004 consisted of $132 million

for capital expenditures, $95 million for the Read-Rite asset acquisition and $32 million for short-term investments. The

increase in capital expenditures in 2005 was primarily a result of assets purchased to upgrade the Company's head

manufacturing capabilities, increased desktop and mobile hard disk drive production capabilities and for the normal

replacement of existing assets. The increase in short-term investments in 2005 was a result of additional investments in

auction rate securities. The 2003 investing activities related primarily to capital expenditures. The increase in capital

expenditures in 2004 was primarily for assets purchased to upgrade the Company's head manufacturing capabilities,

increase desktop hard disk drive production capabilities and for the normal replacement of existing assets. For 2006,

capital expenditures are expected to be approximately $275 million to $300 million. This increase in capital expenditures

is expected to consist primarily of investments in advanced head technologies, new product platforms and capacity for

WD's broadening and growing product portfolio.

Financing Activities

Net cash used in financing activities for 2005 was $7 million as compared to net cash provided by financing

activities of $21 million for 2004 and net cash used in financing activities of $30 million for 2003. The net cash used in

financing activities in 2005 consisted of $45 million used for common stock repurchases and $20 million for debt

payments partially offset by $58 million received upon issuance of common stock under employee plans. The net cash

provided by financing activities for 2004 consisted primarily of $24 million received upon issuance of common stock

under employee plans and $14 million in net proceeds from long-term debt partially offset by $16 million used for

common stock repurchases. The net cash used by financing activities for 2003 consisted primarily of $68 million used for

redemption of the Company's remaining convertible debentures, partially offset by $44 million received upon issuance of

common stock under employee plans.

21

Capital Commitments

The following is a summary of the Company's significant contractual cash obligations and commercial commitments

at July 1, 2005 (in millions):

Less than More thanTotal 1 Year 1-3 Years 3-5 Years 5 Years

Long-term debt, including currentportion ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 38 $ 13 $ 25 $ Ì $ Ì

Capital lease obligations ÏÏÏÏÏÏÏÏÏÏ 15 7 8 Ì Ì

Operating leases ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 60 11 21 16 12

Purchase obligations* ÏÏÏÏÏÏÏÏÏÏÏÏ 2,835 1,821 1,014 Ì Ì

TotalÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $2,948 $1,852 $1,068 $ 16 $ 12

* Includes long-term purchase agreements entered into before August 17, 2005.

Long-Term Debt

The Company has a $125 million credit facility (""Senior Credit Facility'') consisting of a revolving credit line

(subject to outstanding letters of credit and a borrowing base calculation) and a term loan of $38 million. Both the

revolving credit facility and the term loan mature on September 19, 2008 and are secured by the Company's accounts

receivable, inventory, 65% of its stock in its foreign subsidiaries and other assets. For the year ended July 1, 2005, the

Company had no borrowings on the revolving credit line and the average variable rate on the Company's term loan was

4.5%.

The Senior Credit Facility prohibits the payment of cash dividends on common stock and contains specific financial

covenants. The Company is required to maintain an available liquidity level of $300 million at the end of each quarter.

Available liquidity is defined as cash plus eligible trade receivables. As of July 1, 2005, the Company was in compliance

with this covenant. Should the Company's available liquidity be less than $300 million, the Company would then be

subject to minimum EBITDA (earnings before interest, taxes, depreciation and amortization) requirements and capital

expenditure limitations.

The term loan requires quarterly principal payments of approximately $3 million. Principal payments made on the

term loan increase the amount of revolving credit available. At July 1, 2005, $85 million was available for borrowing

under the revolving credit line and the Company had $3 million in outstanding letters of credit.

Purchase Orders

In the normal course of business, the Company enters into purchase orders with suppliers for the purchase of hard

disk drive components used to manufacture the Company's products. These purchase orders generally cover forecasted

component supplies needed for production during the next quarter, are recorded as a liability upon receipt of the

components, and generally may be changed or canceled at any time prior to shipment of the components. In some cases

the Company may be obligated to pay for certain costs related to changes to, or cancellation of, a purchase order, such as

costs incurred for raw materials or work in process.

The Company has entered into long-term purchase agreements with various component suppliers. The commit-

ments are subject to minimum quality requirements. In addition, the dollar amount of the purchases may depend on the

specific products ordered and future price negotiations. The estimated related minimum purchase requirements are

included in ""Purchase Obligations'' in the table above.

The Company enters into, from time to time, other long-term purchase agreements for components with certain

vendors. Generally, future purchases under these agreements are not fixed and determinable as they depend on the

Company's overall unit volume requirements and are contingent upon the prices, technology and quality of the supplier's

products remaining competitive. These arrangements are not included under ""Purchase Obligations'' in the table above.

See below under the heading ""Risk Factors That May Affect Future Results'' for a discussion of these commitments.

22

Forward Exchange Contracts

The Company purchases short-term, forward exchange contracts to hedge the impact of foreign currency fluctuations

on certain underlying assets, liabilities and commitments for operating expenses and product costs denominated in foreign

currencies. See Part II, Item 7A, under the heading ""Disclosure About Foreign Currency Risk,'' for the Company's

current forward exchange contract commitments.

Indemnifications

In the ordinary course of business, the Company may provide indemnifications of varying scope and terms to

customers, vendors, lessors, business partners and other parties with respect to certain matters, including, but not limited

to, losses arising out of our breach of such agreements, services to be provided by us, or from intellectual property

infringement claims made by third parties. In addition, the Company has entered into indemnification agreements with

its directors and certain of its officers that will require it, among other things, to indemnify them against certain liabilities

that may arise by reason of their status or service as directors or officers. The Company maintains director and officer

insurance, which may cover certain liabilities arising from its obligation to indemnify its directors and officers in certain

circumstances.

It is not possible to determine the maximum potential amount under these indemnification agreements due to the

limited history of prior indemnification claims and the unique facts and circumstances involved in each particular

agreement. Such indemnification agreements may not be subject to maximum loss clauses. Historically, the Company has

not incurred material costs as a result of obligations under these agreements.

Stock Repurchase Program

WD announced a stock repurchase program on May 5, 2004. Under the program, the Company may purchase on

the open market up to $100 million of its common stock depending on market conditions and other corporate

considerations. Stock repurchases are expected to be funded principally by operating cash flow. During 2005, WD

repurchased 4.8 million shares of common stock at a total cost of $45 million. In addition, between July 2, 2005 and

September 9, 2005 the Company repurchased 0.4 million shares of common stock at a cost of $6 million. Since the

inception of the program and through September 9, 2005, the Company has repurchased 7.1 million shares for a total

cost of $67 million (including commissions). WD may continue to repurchase its stock as it deems appropriate and

market conditions allow.

Western Digital believes its current cash, cash equivalents and short-term investments will be sufficient to meet its

working capital needs through the foreseeable future. There can be no assurance that the Senior Credit Facility will

continue to be available to the Company. Also, WD's ability to sustain its working capital position is dependent upon a

number of factors that are discussed below under the heading ""Risk Factors That May Affect Future Results.'' The

Company currently anticipates that it will continue to utilize its liquidity and cash flows to improve the efficiency and

capability of its existing hard disk drive and head manufacturing operations.

Critical Accounting Policies

The Company has prepared the accompanying consolidated financial statements in conformity with accounting

principles generally accepted in the United States. The preparation of the financial statements requires the use of

judgment and estimates that affect the reported amounts of revenues, expenses, assets and liabilities. The Company has

adopted accounting policies and practices that are generally accepted in the industry in which it operates. The Company

believes the following are its most critical accounting policies that affect significant areas and involve management's

judgment and estimates. If these estimates differ significantly from actual results, the impact to the consolidated financial

statements may be material.

Revenue and Accounts Receivable

In accordance with standard industry practice, Western Digital has agreements with resellers that provide limited

price protection for inventories held by resellers at the time of published list price reductions and other incentive

programs. In accordance with current accounting standards, the Company recognizes revenue upon shipment or delivery

23

to resellers and records a reduction to revenue for estimated price protection and other programs in effect until the resellers

sell such inventory to their customers. Adjustments are based on anticipated price decreases during the reseller holding

period, estimated amounts to be reimbursed to qualifying customers, as well as historical pricing information. If end-

market demand for hard disk drives declines significantly, the Company may have to increase sell-through incentive

payments to resellers, resulting in an increase in price protection allowances, which could adversely impact operating

results.

Western Digital establishes an allowance for doubtful accounts by analyzing specific customer accounts and assessing

the risk of loss based on insolvency, disputes or other collection issues. In addition, the Company routinely analyzes the

different receivable aging categories and its bad debt loss history and establishes reserves based on a combination of past

due receivables and expected future losses based primarily on the Company's historical levels of bad debt losses. If the

financial condition of a significant customer deteriorates resulting in its inability to pay its accounts when due, or if the

overall loss history of the Company changes significantly, an adjustment in the Company's allowance for doubtful

accounts would be required, which could affect operating results.

Western Digital records provisions against revenue and cost of revenue for estimated sales returns in the same period

that the related revenue is recognized. The Company bases these provisions on existing product return notifications as

well as historical returns by product type (see ""Warranty''). If actual sales returns exceed expectations, an increase in the

sales return provision would be required, which could negatively affect operating results.

Warranty

Western Digital records an accrual for estimated warranty costs when revenue is recognized. Warranty covers costs

of repair or replacement of the hard disk drive over the warranty period, which generally ranges from one to five years.

The Company has comprehensive processes with which to estimate accruals for warranty, which include specific detail on

hard disk drives in the field by product type, historical field return rates and costs to repair. If actual product return rates

or costs to repair returned products differ significantly from current expectations, a change in the warranty provision

would be required. For a summary of historical changes in estimates related to pre-existing warranty provisions, refer to

Part II, Item 8, Notes to Consolidated Financial Statements, Note 5 ""Commitments and Contingencies'' included in this

Annual Report on Form 10-K.

Inventory

Inventories are valued at the lower of cost (first-in, first-out basis) or net realizable value. Inventory write-downs are

recorded for the valuation of inventory at the lower of cost or net realizable value by analyzing market conditions and

estimates of future sales prices as compared to inventory costs and inventory balances.

The Company evaluates inventory balances for excess quantities and obsolescence on a regular basis by analyzing

backlog, estimated demand, inventory on hand, sales levels and other information, and reduces inventory balances to net

realizable value for excess and obsolete inventory based on the analysis. Unanticipated changes in technology or customer

demand could result in a decrease in demand for one or more of the Company's products, which may require an increase

in inventory balance adjustments that could negatively affect operating results.

Litigation and Other Contingencies

Western Digital applies Statement of Financial Accounting Standards No. 5, ""Accounting for Contingencies,'' to

determine when and how much to accrue for and disclose related to legal and other contingencies. Accordingly, the

Company accrues loss contingencies when management, in consultation with its legal advisors, concludes that a loss is

probable and reasonably estimable. (Refer to Part II, Item 8, Notes to Consolidated Financial Statements, Note 6 ""Legal

Proceedings'' included in this Annual Report on Form 10-K). The ability to predict the ultimate outcome of such

matters involves judgments, estimates and inherent uncertainties. The actual outcome of such matters could differ

materially from management's estimates.

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Deferred Tax Assets

Western Digital's deferred tax assets, which consist primarily of net operating loss and tax credit carryforwards, are

fully reserved due to management's determination that it is more likely than not that these assets will not be realized.

This determination is based on the weight of available evidence, the most significant of which is the Company's loss

history in the related tax jurisdictions. Should this determination change in the future, some amount of deferred tax assets

could be recognized, resulting in a tax benefit or a reduction of future tax expense. The Company records estimated tax

liabilities to the extent the contingencies are probable and can be reasonably estimated. However, the actual liability in

any such tax contingencies may be materially different from our estimates, which could result in the need to record

additional tax liabilities or potentially adjust previously recorded tax liabilities.

New Accounting Standards

In November 2004, the Financial Accounting Standards Board (FASB) issued Statement of Financial Accounting

Standards No. 151, ""Inventory Costs, an Amendment of ARB No. 43, Chapter 4'' (SFAS No. 151), which clarifies the

accounting for abnormal amounts of idle facility expense, freight, handling costs and wasted material (spoilage) and

requires those items be recognized as current period charges regardless of whether they meet the definition of ""so

abnormal''. SFAS No. 151 is effective for inventory costs incurred during fiscal years beginning after June 15, 2005. The

Company does not expect the adoption of SFAS No. 151 to have a material impact on its financial statements.

In December 2004, the FASB issued revised statement SFAS No. 123, ""Share-Based Payment''

(SFAS No. 123-R), which supersedes APB Opinion No. 25 and replaces the current SFAS No. 123. SFAS No. 123-R

requires companies to expense the estimated fair value of employee stock options and similar awards and provides

guidance on the valuation methods used in determining the estimated fair value. The provisions of SFAS No. 123-R will

be effective beginning with the Company's first quarter of fiscal year 2006. Under SFAS No. 123-R, compensation

expense for existing awards where the requisite service period has not been completed by the effective date will be

charged to expense over the remaining service period using the same fair value currently calculated for pro forma

disclosure purposes under SFAS No. 123. For fiscal year 2005, the proforma net impact of stock option expense as

reported in footnote 1 to the consolidated financial statements was approximately $25 million. The Company is currently

in the process of determining the impact of SFAS 123-R on its 2006 financial statements. The actual effect of adopting

SFAS 123R will be dependent on several factors including the levels and timing of future share-based payment grants,

the assumed award forfeiture rate and the method of recognizing the fair value of awards over the service period.

In March 2005, the FASB issued FIN 47, ""Accounting for Conditional Asset Retirement Obligations, an

interpretation of FASB Statement No. 143'' (""FIN 47''), which requires an entity to recognize a liability for the fair

value of a conditional asset retirement obligation when incurred if the liability's fair value can be reasonably estimated.

FIN 47 is effective for fiscal years ending after December 15, 2005. The Company does not expect the adoption of

FIN 47 to have a material impact on its financial statements.

Risk Factors That May Affect Future Results

Declines in average selling prices (""ASPs'') in the hard disk drive industry adversely affect our operating results.

The hard disk drive industry historically has experienced declining ASPs. Although the rate of decline has

moderated in recent years, there can be no assurance that this trend will continue. Our ASPs tend to decline when

competitors lower prices as a result of decreased costs or to absorb excess capacity, liquidate excess inventories, restructure

or attempt to gain market share. Our ASPs also decline when there is a shift in the mix of product sales, and sales of

lower priced products increase relative to those of higher priced products.

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Our operating results depend on optimizing time-to-market and time-to-volume, overall quality, and costs of new and

established products.

To achieve consistent success with our customers who manufacturer computers, systems and consumer electronic

products, we must balance several key attributes such as time-to-market, time-to-volume, quality, cost, service, price and

a broad product portfolio. If we fail to:

‚ maintain overall quality of products on new and established programs,

‚ maintain competitive cost structures on new and established products,

‚ produce sufficient quantities of products at the capacities our customers demand while managing the integration

of new and established technologies,

‚ develop and qualify new products that have changes in overall specifications or features that our customers may

require for their business needs,

‚ obtain commitments from our customers to qualify new products, redesigns of current products, or new

components in our existing products,

‚ qualify these products with key customers on a timely basis by meeting all of our customers' needs for

performance, quality and features,

‚ maintain an adequate supply of components required to manufacture our products,

‚ maintain the manufacturing capability to quickly change our product mix between different capacities, form

factors and spin speeds in response to changes in customers' product demands, or

‚ consistently meet stated quality requirements on delivered products,

our operating results could be adversely affected.

Product life cycles influence our financial results.

Product life cycles have been extending since the middle of calendar year 2002 due in large part to a decrease in the

rate of hard disk drive areal density growth. However, there can be no assurance that this trend will continue. If longer

product life cycles continue, we may need to develop new technologies or programs to reduce our costs on any particular

product in order to maintain competitive pricing for such product. This may result in an increase in our overall expenses

and a decrease in our gross margins, both of which could adversely affect our operating results. If product life cycles

shorten, it may be more difficult to recover the cost of product development before the product becomes obsolete. Our

failure to recover the cost of product development in the future could adversely affect our operating results.

Product life cycles in the desktop hard disk drive market require continuous technical innovation associated with higher

areal densities.

New products in the desktop hard disk drive market may require higher areal densities than previous product

generations, posing formidable technical and manufacturing challenges. Higher areal densities require existing head

technology to be improved or new technology developed to accommodate more data on a single disk. In addition, our

introduction of new products during a technology transition increases the likelihood of unexpected quality concerns. Our

failure to bring high quality new products to market on time and at acceptable costs may put us at a competitive

disadvantage to companies that achieve these results. In addition, technology improvements may require us to reduce the

price on existing products to remain competitive.

The difficulty of introducing hard disk drives with higher levels of areal density and the challenges of reducing other

costs may impact our ability to achieve historical levels of cost reduction.

Storage capacity of the hard disk drive, as manufactured by us, is determined by the number of disks and each

disk's areal density. Areal density is a measure of the amount of magnetic bits that can be stored on the recording surface

of the disk. Generally, the higher the areal density, the more information can be stored on a single platter. Historically,

we have been able to achieve a large percentage of cost reduction through increases in areal density. Increases in areal

26

density mean that the average drive we sell has fewer heads and disks for the same capacity and, therefore, may result in a

lower component cost. However, because increases in areal density have become more difficult in the hard disk drive

industry, such increases may require increases in component costs. In addition, other opportunities to reduce costs may

not continue at historical rates. Our inability to achieve cost reductions could adversely affect our operating results.

Increases in areal density may outpace customers' demand for storage capacity.

Historically, the industry has experienced periods of increased areal density growth rates. Although in recent years

there has been a decrease in the rate of areal density growth, if industry conditions return to periods of increased growth

rates, the rate of increase in areal density may exceed the increase in our customers' demand for aggregate storage

capacity. This could lead to our customers' storage capacity needs being satisfied with more lower-cost single-surface

drives, thereby decreasing our revenue. As a result, even with increasing aggregate demand for storage capacity, our ASPs

could decline, which could adversely affect our results of operations.

Changes in the markets for hard disk drives require us to develop new products and new technology.

Over the past few years the consumer market for desktop computers has shifted significantly towards lower priced

systems. If we are not able to offer a competitively priced hard disk drive for the low-cost PC market, our share of that

market will likely fall, which could harm our operating results.

The market for hard disk drives is also fragmenting into a variety of devices and products. Many industry analysts

expect, as do we, that as communications are increasingly converted to digital technology from the older, analog

technology, the technology of computers and consumer electronics will continue to converge, and hard disk drives will be

found in many CE products other than computers.

In addition, we expect that the consumer market for multi-media applications, including audio-video products,

incorporating a hard disk drive will continue to grow. However, because this market remains relatively new, accurate

forecasts for future growth remain challenging. Moreover, some of the devices, such as personal video recorders and

digital video recorders, or other products outside of the CE market, may require attributes not currently offered in our

products, which have resulted in a need to expend capital to develop new interfaces, form factors, technical specifications

or hard disk drive features, increasing our overall operational expense without corresponding incremental revenue at this

stage. If we are not successful in using our hard disk drive technology and expertise to develop new products for the

emerging CE market, or if we are required to incur significant costs in developing such products, it may harm our

operating results.

If we do not successfully expand into new hard disk drive markets, our business may suffer.

To remain a significant supplier of hard disk drives, we will need to offer a broad range of hard disk drive products

to our customers. We currently offer a variety of 3.5-inch hard disk drives for the desktop computer and CE markets,

and we also offer 2.5-inch form factor hard disk drives for the mobile market. However, demand for hard disk drives

may shift to products in smaller form factors, which our competitors may already offer. We recently announced our entry

into the sub-2.5-inch hard disk drive market with a family of 1.0-inch drives, which we expect to ship in the future. We

face various challenges in manufacturing a 1.0-inch hard disk drive because it requires the development of new

manufacturing technologies and processes. If we are not able to adequately address these challenges, our expected

shipment of this product may be delayed, resulting in a delay in our ability to realize revenue from this product.

In addition, the enterprise and desktop PC markets are transitioning from the PATA interface to higher speed

interfaces such as SATA to handle higher data transfer rates. We currently offer SATA products; however, the transition

of technology and the introduction of new products are challenging and create risks. For example, acceptance of the SATA

interface may not continue to grow, or customers may choose to purchase alternative interfaces that may not be

compatible with future generations of SATA hard disk drives. Moreover, our customers may require new SATA features

that we may not be able to deliver in a timely and cost effective manner.

While we continue to develop new products and look to expand into other applications, the success of our new

product introductions is dependent on a number of factors, including difficulties faced in manufacturing ramp, market

acceptance, effective management of inventory levels in line with anticipated product demand, and the risk that our new

27

products may have quality problems or other defects in the early stages of introduction that were not anticipated in the

design of those products. If we fail to successfully develop and manufacture new products, customers may decrease the

amount of our products that they purchase, and we may lose business to our competitors who offer these products or who

use their dominance in the enterprise or mobile market to encourage sales of hard disk drives.

If we do not successfully expand into the 2.5-inch and sub-2.5-inch markets, our business may suffer.

We began shipping 2.5-inch form factor hard disk drives for the mobile market during calendar year 2004.

Although many of our customers who purchase 3.5-inch form factor hard disk drives also purchase the 2.5-inch form

factor drives, the markets are characterized by different competitors, different sales channels and different overall

requirements. If we are unable to adapt to these differences, we would have a competitive disadvantage to companies that

are successful in this regard, and our business and financial results could suffer. In addition, if we incur significant costs in

manufacturing and selling the 2.5-inch and sub-2.5-inch form factor hard disk drives, and if we are unable to recover

those costs from sales of the products, then we may not be able to compete successfully in this market and our operating

results may suffer.

Selling to the retail market is an important part of our business, and if we fail to maintain and grow our market

share or gain market acceptance of our retail products, our operating results could suffer.

We sell our retail-packaged products directly to a select group of major retailers such as computer superstores and

CE stores, and authorize sales through distributors to other retailers. Our current retail customer base is primarily in the

United States, Canada and Europe. We are facing increased competition from other companies for shelf space at major

retailers, which could result in lower gross margins. If we fail to successfully maintain our market share in North America,

our operating results may be adversely affected. In certain markets, we are trying to grow market share, and in the process

may face strong competition, which could result in lower gross margins. We will continue to introduce new products in

the retail market that incorporate our disk drives. There can be no assurance that these products gain market acceptance,

and if they do not, our operating results could suffer.

To develop new products, we must maintain effective partner relationships with our major component suppliers.

Under our business model, we do not manufacture any of the component parts used in our hard disk drives, other

than heads. As a result, the success of our products depends on our ability to gain access to and integrate parts that are

""best in class'' from reliable component suppliers. To do so, we must effectively manage our relationships with our major

component suppliers. We must also effectively integrate different products from a variety of suppliers, each of which

employs variations on technology, which can impact, for example, feasible combinations of heads and media components.

In August 2003, we settled litigation we were engaged in with a supplier who previously was the sole source of read

channel devices for our hard disk drives. As a result of the disputes that gave rise to the litigation, our profitability was at

risk until another supplier's read channel devices could be designed into our products. Similar disputes with other

strategic component suppliers could adversely affect our operating results.

Dependence on a limited number of qualified suppliers of components and manufacturing equipment could lead to

delays, lost revenue or increased costs.

Because we depend on a limited number of suppliers for certain hard disk drive components and manufacturing

equipment, an increase in the cost of such components or equipment, an extended shortage of required components or

equipment, failure of a key supplier's business process, or the failure of key suppliers to remain in business, adjust to

market conditions, or to meet our quality, yield or production requirements could significantly harm our operating

results. Our future operating results may also depend substantially on our suppliers' ability to timely qualify their

components in our programs, and their ability to supply us with these components in sufficient volumes to meet our

production requirements. A number of the components that we use are available from only a single or limited number of

qualified outside suppliers, and may be used across multiple product lines. In addition, some of the components (or

component types) used in our products are used in other devices, such as mobile telephones and digital cameras. If there

is a significant simultaneous upswing in demand for such a component (or component type) from several high volume

industries, resulting in a supply reduction, or a component is otherwise in short supply, or if a supplier fails to qualify or

has a quality issue with a component, we may experience delays or increased costs in obtaining that component. For

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example, the hard disk drive industry is currently facing a tightness in the availability of media (rotating magnetic disks)

components. We may experience production delays if we are unable to obtain the necessary components or sufficient

quantities of components. If a component becomes unavailable, we could suffer significant loss of revenue.

To reduce the risk of component shortages, we attempt to provide significant lead times when buying these

components. As a result, we may be subject to cancellation charges if we cancel orders, which may occur when we make

technology transitions. In addition, we may enter into contractual commitments with certain component suppliers in an

effort to increase and stabilize the supply of those components, and enable us to purchase such components at favorable

prices. These commitments may require us to buy a substantial number of components from the supplier or make

significant cash advances to the supplier.

In addition, certain equipment we use in our manufacturing or testing processes is available only from a limited

number of suppliers. Some of this equipment uses materials that at times could be in short supply. If these materials are

not available, or are not available in the quantities we require for our manufacturing and testing processes, our ability to

manufacture our products could be impacted, and we could suffer significant loss of revenue.

Rising Costs of Commodity Materials May Result in Lower Operating Margins.

The cost and availability of certain commodity materials used to manufacture hard disk drives and key components

is critical to our success. Shortages of such materials such as steel and aluminum and the rising cost of oil increase our

costs and may result in lower operating margins if we are unable to pass such increased costs through to our customers.

A fundamental change in recording technology could result in significant increases in our operating expenses and could

put us at a competitive disadvantage.

Currently the hard disk drive industry uses giant magnetoresistive head technology, which allows significantly

higher storage capacities than the previously utilized thin-film head technology. However, the industry is developing new

recording technologies that may enable greater recording densities than currently available using magnetoresistive head

technology, including perpendicular, current perpendicular-to-plane, and tunneling junction technology. If the industry

experiences a fundamental shift in recording technology, hard disk drive manufacturers would need to timely adjust their

designs and processes to accommodate the new technology in order to remain competitive. As a result, we could incur

substantial costs in developing new technologies, media, and tools to remain competitive. We may also become more

dependent on suppliers to ensure our access to components that accommodate the new technology. These results would

increase our operating costs, which may negatively impact our operating results.

We experience additional costs and risks in connection with our head manufacturing operations.

Our vertical integration of head manufacturing has resulted in a fundamental change in our operating structure, as

we are now manufacturing heads for use in the hard disk drives we manufacture. Consequently, we make more capital

investments than we would if we were not vertically integrated and carry a higher percentage of fixed costs than assumed

in our prior financial business model. If the overall level of production decreases for any reason, and we are unable to

reduce our fixed costs to match sales, our head manufacturing assets may face under-utilization that may impact our

results of operations. We are therefore subject to additional risks related to overall asset utilization, including the need to

operate at high levels of utilization to drive competitive costs, and the need for assured supply of components, especially

hard disk drive media, that is optimized to work with our heads.

In addition, we may incur additional risks, including:

‚ we may not have sufficient head sources in the event that we are unable to manufacture a sufficient supply of

heads to satisfy our needs;

‚ third party head suppliers may not continue to do business with us or may not do business with us on the same

terms and conditions we have previously enjoyed;

‚ we may be subject to claims that our manufacturing of heads may infringe certain intellectual property rights of

other companies; and

29

‚ it may be difficult and time-consuming for us to locate suitable manufacturing equipment for our head

manufacturing processes and replacement parts for such equipment.

If we do not adequately address the challenges related to our head manufacturing operations, our ongoing operations

could be disrupted, resulting in a decrease in our revenue or profit margins and negatively impacting our operating

results.

If we are unable to timely and cost-effectively develop heads with leading technology and overall quality, our ability to

sell our products may be significantly diminished, which could materially and adversely affect our business and

financial results.

As a result of our head manufacturing operations, we are developing and manufacturing a substantial portion of the

heads used in the hard disk drives we manufacture. Consequently, we are more dependent upon our own development

and execution efforts and less able to take advantage of head technologies developed by other head manufacturers. There

can be no assurance, however, that we will be successful in timely and cost-effectively developing and manufacturing

heads for products using perpendicular recording technology, or other future technologies. We also may not achieve

acceptable manufacturing yields using such technologies necessary to satisfy our customers' product needs, or we may

encounter quality problems with the heads we manufacture. In addition, we may not have access to external sources of

supply without incurring substantial costs. For example, the Company anticipates using perpendicular recording heads in

certain products in the future. If we fail to develop new technologies such as perpendicular recording in a timely manner,

or if we encounter quality problems with the heads we manufacture, and if we do not have access to external sources of

supply that incorporate new technologies, we would have a competitive disadvantage to companies that are successful in

this regard, and our business and financial results could suffer.

We have two high-volume hard-drive manufacturing facilities and two facilities supporting our head manufacturing

operations, which subjects us to the risk of damage or loss of any of these facilities.

Our hard disk drives are manufactured in facilities in Malaysia and Thailand. In addition, we operate a head wafer

fabrication and research and development facility in Fremont, California and a slider fabrication, head gimbal assembly,

head stack assembly, and research and development facility in Thailand. A fire, flood, earthquake or other disaster,

condition or event such as a power outage that adversely affects any of these facilities or our ability to manufacture could

result in a loss of sales and revenue and harm our operating results.

Manufacturing our products abroad subjects us to numerous risks.

We are subject to risks associated with our foreign manufacturing operations, including:

‚ obtaining requisite United States and foreign governmental permits and approvals;

‚ currency exchange rate fluctuations or restrictions;

‚ political instability and civil unrest;

‚ transportation delays or higher freight rates;

‚ labor problems;

‚ trade restrictions or higher tariffs;

‚ exchange, currency and tax controls and reallocations;

‚ increasing labor and overhead costs; and

‚ loss or non-renewal of favorable tax treatment under agreements or treaties with foreign tax authorities.

Because we manufacture our products abroad, our operating costs are subject to fluctuations in foreign currency

exchange rates. Further fluctuations in the exchange rate of the Thai Baht and of the Malaysian Ringgit may negatively

impact our operating results.

30

The Thai Baht is a free floating currency while the Malaysian Ringgit exchange rate policy recently defined by the

Malaysian government is one of a managed float. We have attempted to manage the impact of foreign currency exchange

rate changes by, among other things, entering into short-term, forward contracts. However, these contracts do not cover

our full exposure and can be canceled by the issuer if currency controls are put in place. Currently, we hedge the Thai

Baht, Euro and British Pound Sterling with forward contracts.

There has been a trend toward a weakening U.S. dollar relative to most foreign currencies. If this trend continues,

the U.S. dollar equivalents of unhedged manufacturing costs could increase because a significant portion of our

production costs are foreign-currency denominated. Conversely, there would not be an offsetting impact to revenues since

revenues are substantially U.S. dollar denominated.

If we fail to qualify our products with our customers, they may not purchase any units of a particular product line,

which would have a significant adverse impact on our sales.

We regularly engage in new product qualification with our customers. To be considered for qualification, we must

be among the leaders in time-to-market with our new products. Once a product is accepted for qualification testing,

failures or delays in the qualification process can result in our losing sales to that customer until the next generation of

products is introduced. The effect of missing a product qualification opportunity is magnified by the limited number of

high volume computer manufacturers, most of which continue to consolidate their share of the PC market. If product life

cycles continue to be extended due to a decrease in the rate of areal density growth, we may have a significantly longer

period to wait before we have an opportunity to qualify a new product with a customer, which could harm our

competitive position. These risks are increased because we expect cost improvements and competitive pressures to result

in declining gross margins on our current generation products.

The hard disk drive industry is highly competitive and can be characterized by rapid shifts in market share among the

major competitors.

The price of hard disk drives has fallen over time due to increases in supply, cost reductions, technological advances

and price reductions by competitors seeking to liquidate excess inventories or attempting to gain market share. In

addition, rapid technological changes often reduce the volume and profitability of sales of existing products and increase

the risk of inventory obsolescence. We also face competition from other companies that produce alternative storage

technologies like flash memory. These factors, taken together, may result in significant and rapid shifts in market share

among the industry's major participants. In addition, product recalls can lead to a loss of market share, which could

adversely affect our operating results.

Our current competitors or a future competitor may gain a technology advantage or an advantageous cost structure that

we cannot match.

It may be possible for our current or future competitors to gain an advantage in product technology, manufacturing

technology, or process technology, which may allow them to offer products or services that have a significant advantage

over the products and services that we offer. Advantages could be in capacity, performance, reliability, serviceability, or

other attributes. If we are unable to match these technology advantages due to the proprietary nature of the technology,

limitations on process capability or other factors, we could be at a competitive disadvantage to those competitors.

Advances in magnetic, optical, semiconductor or other data storage technologies also could result in competitive

products that have better performance or lower cost per unit of capacity than our products. High-speed semiconductor

memory could compete with the Company's hard disk drive products in the future. Semiconductor memory is much

faster than magnetic hard disk drives, but currently is not competitive from a cost standpoint. Flash memory, a non-

volatile semiconductor memory, is currently much more costly and, while it has higher ""read'' performance than hard

disk drives, it has lower ""write'' performance. Flash memory could become competitive in the near future for applications

requiring less storage capacity than that provided by hard disk drives. If these products prove to be superior in

performance or cost per unit of capacity, we could be at a competitive disadvantage to the companies offering those

products.

In addition, if our competitors are able to achieve a lower cost structure for manufacturing hard disk drives by

moving manufacturing facilities to advantageous locations or through other restructuring activities, and we are unable to

31

match their cost structure, we could be at a competitive disadvantage to those competitors as they may be able to sell

hard disk drives at lower margins while remaining profitable.

Some of our competitors with diversified business units outside the hard disk drive industry may be able to sell disk

drives at lower margins that we cannot match.

Some of our competitors earn a significant portion of their revenue from business units outside the hard disk drive

industry. Because they do not depend solely on sales of hard disk drives to achieve profitability, they may be able to sell

hard disk drives at lower margins and still remain profitable. In addition, if these competitors can increase sales of non

hard disk drive products to the same customers, they may benefit from selling their hard disk drives at low margins. Our

results of operations may be adversely affected if we can not successfully compete with these companies.

The nature of our business and our reliance on intellectual property and other proprietary information subjects us to the

risk of significant litigation.

The hard disk drive industry has been characterized by significant litigation. This includes litigation relating to

patent and other intellectual property rights, product liability claims and other types of litigation. Litigation can be

expensive, lengthy and disruptive to normal business operations. Moreover, the results of litigation are inherently

uncertain and may result in adverse rulings or decisions. We may enter into settlements or be subject to judgments that

may, individually or in the aggregate, have a material adverse effect on our business, financial condition or results of

operations.

We are currently evaluating notices of alleged patent infringement or notices of patents from patent holders. If

claims or actions are asserted against us, we may be required to obtain a license or cross-license, modify our existing

technology or design a new non-infringing technology. Such licenses or design modifications can be extremely costly. In

addition, we may decide to settle a claim or action against us, which settlement could be costly. We may also be liable for

any past infringement. If there is an adverse ruling against us in an infringement lawsuit, an injunction could be issued

barring production or sale of any infringing product. It could also result in a damage award equal to a reasonable royalty

or lost profits or, if there is a finding of willful infringement, treble damages. Any of these results would likely increase

our costs and harm our operating results.

Our reliance on intellectual property and other proprietary information subjects us to the risk that these key ingredients

of our business could be copied by competitors.

Our success depends, in significant part, on the proprietary nature of our technology, including non-patentable

intellectual property such as our process technology. Despite safeguards, to the extent that a competitor is able to

reproduce or otherwise capitalize on our technology, it may be difficult, expensive or impossible for us to obtain necessary

legal protection. Also, the laws of some foreign countries may not protect our intellectual property to the same extent as

do the laws of the United States. In addition to patent protection of intellectual property rights, we consider elements of

our product designs and processes to be proprietary and confidential. We rely upon employee, consultant and vendor non-

disclosure agreements and contractual provisions and a system of internal safeguards to protect our proprietary

information. However, any of our registered or unregistered intellectual property rights may be challenged or exploited by

others in the industry, which might harm our operating results.

We depend on our key personnel and skilled employees.

Our success depends upon the continued contributions of our key personnel and skilled employees, many of whom

would be extremely difficult to replace. Worldwide competition for skilled employees in the hard disk drive industry is

intense. Volatility or lack of positive performance in our stock price may adversely affect our ability to retain key

personnel or skilled employees who have been granted stock options. If we are unable to retain our existing key personnel

or skilled employees, or hire and integrate new key personnel or skilled employees, our operating results would likely be

harmed.

32

Our prices and margins are subject to declines due to unpredictable end-user demand and oversupply of hard disk

drives.

Demand for our hard disk drives depends on the demand for systems manufactured by our customers and on

storage upgrades to existing systems. The demand for systems has been volatile in the past and often has had an

exaggerated effect on the demand for hard disk drives in any given period. As a result, the hard disk drive market has

experienced periods of excess capacity which can lead to liquidation of excess inventories and intense price competition. If

intense price competition occurs, we may be forced to lower prices sooner and more than expected, which could result in

lower revenue and gross margins.

Our failure to accurately forecast market and customer demand for our products could adversely affect our business and

financial results.

The hard disk drive industry faces difficulties in accurately forecasting market and customer demand for its

products. The variety and volume of products we manufacture is based in part on these forecasts. If our forecasts exceed

actual market demand, or if market demand decreases significantly from our forecasts, then we could experience periods

of product oversupply and price decreases, which could impact our financial performance. If our forecasts do not meet

actual market demand, of if market demand increases significantly beyond our forecasts, then we may not be able to

satisfy customer product needs, which could result in a loss of market share if our competitors are able to meet customer

demands.

We also use forecasts in making decisions regarding investment of our resources. For example, as the hard disk drive

industry transitions from the PATA interface to the SATA interface, we may invest more resources in the development of

products using the SATA interface. If our forecasts regarding the replacement of the PATA interface with the SATA

interface are inaccurate, we may not have products available to meet our customers' needs.

In addition, although we receive forecasts from our customers, they are not obligated to purchase the forecasted

amounts. We consider these forecasts in determining our component needs and our inventory requirements. If we fail to

accurately forecast our customers' product demands, we may have inadequate or excess inventory of our products or

components, which could adversely affect our operating results

Loss of market share with a key customer could harm our operating results.

A majority of our revenue comes from a few customers. For example, during 2005, one customer, Dell, accounted

for 16% of our revenue, and sales to our top 10 customers, including Dell, accounted for 46% of revenue. These

customers have a variety of suppliers to choose from and therefore can make substantial demands on us, including

demands on product pricing and on contractual terms, which often results in the allocation of risk to us as the supplier.

Even if we successfully qualify a product with a customer, the customer generally is not obligated to purchase any

minimum volume of products from us and is able to terminate its relationship with us at any time. Our ability to

maintain strong relationships with our principal customers is essential to our future performance. If we lose a key

customer, if any of our key customers reduce their orders of our products or require us to reduce our prices before we are

able to reduce costs, or if a key customer suffers financial hardship then our operating results would likely be harmed. In

addition, if customer pressures require us to reduce our pricing such that our gross margins are diminished, we could

decide not to sell our products to a particular customer, which could result in a decrease in our revenue.

Environmental costs could harm our operating results.

We may be subject to various state, federal and international laws and regulations governing the environment,

including those restricting the presence of certain substances in electronic products and making producers of those

products financially responsible for the collection, treatment, recycling and disposal of certain products. Such laws and

regulations have been passed in several jurisdictions in which we operate, including various European Union member

countries. For example, the European Union has enacted the Restriction of the Use of Certain Hazardous Substances in

Electrical and Electronic Equipment Directive (""RoHS''). RoHS prohibits the use of certain substances, including lead,

in certain products, including hard disk drives, put on the market after July 1, 2006. Similar legislation may be enacted

33

in other locations where we manufacture or sell our products. We will need to ensure that we comply with such laws and

regulations as they are enacted, and that our component suppliers also timely comply with such laws and regulations. If

we fail to timely comply with such legislation, our customers may refuse to purchase our products, which would have a

materially adverse effect on our business, financial condition and results of operations.

We could incur substantial costs in connection with our compliance with such environmental laws and regulations,

and we could also be subject to governmental fines and liability to our customers if we were found to be in violation of

these laws. If we have to make significant capital expenditures to comply with environmental laws, or if we are subject to

significant capital expenses in connection with a violation of these laws, our financial condition or operating results could

suffer.

We are subject to risks related to product defects, which could result in product recalls and could subject us to

warranty claims in excess of our warranty provisions or which are greater than anticipated due to the unenforceability

of liability limitations.

We warrant our products for up to five years. We test our hard disk drives in our manufacturing facilities through a

variety of means. However, there can be no assurance that our testing will reveal latent defects in our products, which

may not become apparent until after the products have been sold into the market. Accordingly, there is a risk that

product defects will occur, which could require a product recall. Product recalls can be expensive to implement and, if a

product recall occurs during the product's warranty period, we may be required to replace the defective product. In

addition, a product recall may damage our relationship with our customers, and we may lose market share with our

customers, including our OEM customers.

Our standard warranties contain limits on damages and exclusions of liability for consequential damages and for

misuse, improper installation, alteration, accident or mishandling while in the possession of someone other than the

Company. We record an accrual for estimated warranty costs at the time revenue is recognized. We may incur additional

operating expenses if our warranty provision does not reflect the actual cost of resolving issues related to defects in our

products. If these additional expenses are significant, it could adversely affect our business, financial condition and results

of operations.

Some of our customers have adopted a subcontractor model that increases our credit risk and could result in an increase

in our operating costs.

Some of our OEM customers have adopted a subcontractor model that requires us to contract directly with

companies that provide manufacturing services to our OEM customers. Because these subcontractors are generally not as

well capitalized as our direct OEM customers, this subcontractor model exposes us to increased credit risks. Our

agreements with our OEM customers may not permit us to increase our product prices to alleviate this increased credit

risk. Any credit losses we may suffer as a result of this increased risk would increase our operating costs, which may

negatively impact our operating results.

Terrorist attacks may adversely affect our business and operating results.

The continued threat of terrorist activity and other acts of war or hostility, including the war in Iraq, have created

uncertainty in the financial and insurance markets and have significantly increased the political, economic and social

instability in some of the geographic areas in which we operate. Acts of terrorism, either domestically or abroad, could

create further uncertainties and instability. To the extent this results in disruption or delays of our manufacturing

capabilities or shipments of our products, our business, operating results and financial condition could be adversely

affected.

Our failure to timely and efficiently transition our enterprise resource planning software from the version we currently

use to a new version, or our failure to maintain our current software, could adversely affect our business and financial

results.

We use enterprise resource planning software in the operation of our business and maintenance of business and

financial data related to our daily operations. We are in the process of upgrading this software and we anticipate

transitioning to new enterprise resource planning software during the next year. We may experience unexpected

34

difficulties in transitioning to the new software, including difficulties related to the failure or inefficient operation of the

new software. Such difficulties or failures could result in our inability to access business and financial information stored

on the system or the loss of such information. Any inability to access, or loss of, such information as a result of the

transition or otherwise could affect our daily operations, including our ability to ship products and invoice our customers,

which could have a significant adverse impact on our business, financial condition and results of operations.

Inaccurate projections of demand for our product can cause large fluctuations in our quarterly results.

We often ship a high percentage of our total quarterly sales in the third month of the quarter, which makes it

difficult for us to forecast our financial results prior to the end of the quarter. In addition, our quarterly projections and

results may be subject to significant fluctuations as a result of a number of other factors including:

‚ the timing of orders from and shipment of products to major customers;

‚ our product mix;

‚ changes in the prices of our products;

‚ manufacturing delays or interruptions;

‚ acceptance by customers of competing products in lieu of our products;

‚ variations in the cost of components for our products;

‚ limited availability of components that we obtain from a single or a limited number of suppliers;

‚ competition and consolidation in the data storage industry;

‚ seasonal and other fluctuations in demand for PCs often due to technological advances; and

‚ availability and rates of transportation.

Rapidly changing market conditions in the hard disk drive industry make it difficult to estimate actual results.

We have made and continue to make a number of estimates and assumptions relating to our consolidated financial

reporting. The rapidly changing market conditions with which we deal means that actual results may differ significantly

from our estimates and assumptions. Key estimates and assumptions for us include:

‚ accruals for warranty costs related to product defects;

‚ price protection adjustments and other sales promotions and allowances on products sold to retailers, resellers and

distributors;

‚ inventory adjustments for write-down of inventories to lower of cost or market value (net realizable value);

‚ reserves for doubtful accounts;

‚ accruals for product returns;

‚ accruals for litigation and other contingencies; and

‚ reserves for deferred tax assets.

The market price of our common stock is volatile.

The market price of our common stock has been, and may continue to be, extremely volatile. Factors such as the

following may significantly affect the market price of our common stock:

‚ actual or anticipated fluctuations in our operating results;

‚ announcements of technological innovations by us or our competitors which may decrease the volume and

profitability of sales of our existing products and increase the risk of inventory obsolescence;

35

‚ new products introduced by us or our competitors;

‚ periods of severe pricing pressures due to oversupply or price erosion resulting from competitive pressures;

‚ developments with respect to patents or proprietary rights;

‚ conditions and trends in the hard disk drive, data and content management, storage and communication

industries; and

‚ changes in financial estimates by securities analysts relating specifically to us or the hard disk drive industry in

general.

In addition, general economic conditions may cause the stock market to experience extreme price and volume

fluctuations from time to time that particularly affect the stock prices of many high technology companies. These

fluctuations often appear to be unrelated to the operating performance of the companies.

Securities class action lawsuits are often brought against companies after periods of volatility in the market price of

their securities. A number of such suits have been filed against us in the past, and should any new lawsuits be filed, such

matters could result in substantial costs and a diversion of resources and management's attention.

We may be unable to raise future capital through debt or equity financing.

Due to the risks described herein, in the future we may be unable to maintain adequate financial resources for

capital expenditures, expansion or acquisition activity, working capital and research and development. We have a credit

facility, which matures on September 19, 2008. If we decide to increase or accelerate our capital expenditures or research

and development efforts, or if results of operations do not meet our expectations, we could require additional debt or

equity financing. However, we cannot ensure that additional financing will be available to us or available on acceptable

terms. An equity financing could also be dilutive to our existing stockholders.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Disclosure About Foreign Currency Risk

Although the majority of the Company's transactions are in U.S. Dollars, some transactions are based in various

foreign currencies. The Company purchases short-term, forward exchange contracts to hedge the impact of foreign

currency fluctuations on certain underlying assets, liabilities and commitments for operating expenses and product costs

denominated in foreign currencies. The purpose of entering into these hedge transactions is to minimize the impact of

foreign currency fluctuations on the results of operations. The resulting impact from these hedge contracts is to offset a

majority of the currency gains and losses in the Company's local currency expenses. The contract maturity dates do not

exceed six months. The Company does not purchase short-term forward exchange contracts for trading purposes.

Currently, the Company focuses on hedging its foreign currency risk related to the Thai Baht, the Euro and the British

Pound Sterling. Thai Baht contracts are designated as cash flow hedges under Statement of Financial Accounting

Standards No. 133, ""Accounting for Derivative Instruments and Hedging Activities.'' while all other contracts are

designated as fair value hedges under Statement of Financial Accounting Standards No. 52 ""Foreign Currency

Translation.''

36

As of July 1, 2005, the Company had outstanding the following purchased foreign currency forward exchange

contracts (in millions, except weighted average contract rate):

Contract Weighted Average UnrealizedAmount Contract Rate* Gain (Loss)

Foreign currency forward contracts:

Thai Baht ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $147.1 40.07 (0.3)

Euro ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 2.7 0.77 Ì

British Pound Sterling ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 1.6 0.54 Ì

$151.4

* Expressed in units of foreign currency per dollar.

In 2005, 2004 and 2003, total realized transaction and forward exchange contract currency gains and losses were not

material to the consolidated financial statements.

Disclosure About Other Market Risks

Variable Interest Rate Risk

At the option of the Company, borrowings under the Senior Credit Facility would bear interest at either LIBOR

(with option periods of one to three months) or a base rate, plus a margin. If LIBOR or the base rate increases, the

Company's interest payments would also increase. At July 1, 2005, the Company had a $38 million term loan

outstanding under the Senior Credit Facility. A one percent increase in the variable rate of interest on the Senior Credit

Facility would increase interest expense by approximately $0.4 million annually.

37

Item 8. Financial Statements and Supplementary Data

Index to Financial Statements and Financial Statement Schedule

Page

Consolidated Financial Statements:

Independent Auditors' ReportsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 39

Consolidated Balance Sheets Ì July 1, 2005 and July 2, 2004ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 41

Consolidated Statements of Income Ì Three Years Ended July 1, 2005 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 42

Consolidated Statements of Cash Flows Ì Three Years Ended July 1, 2005 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 43

Consolidated Statements of Shareholders' Equity and Comprehensive Income Ì Three Years Ended July 1,2005ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 44

Notes to Consolidated Financial Statements ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 45

Financial Statement Schedule:

Schedule II Ì Consolidated Valuation and Qualifying Accounts Ì Three Years Ended July 1, 2005ÏÏÏÏÏÏ 62

38

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors

Western Digital Corporation:

We have audited the accompanying consolidated balance sheets of Western Digital Corporation and subsidiaries as

of July 1, 2005 and July 2, 2004, and the related consolidated statements of income, shareholders' equity and

comprehensive income and cash flows for each of the years in the three-year period ended July 1, 2005. In connection

with our audits of the consolidated financial statements, we also have audited the financial statement schedule as listed in

the accompanying index. These consolidated financial statements and financial statement schedule are the responsibility

of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements and

financial statement schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board

(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about

whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence

supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting

principles used and significant estimates made by management, as well as evaluating the overall financial statement

presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the

financial position of Western Digital Corporation and subsidiaries as of July 1, 2005 and July 2, 2004, and the results of

their operations and their cash flows for each of the years in the three-year period ended July 1, 2005, in conformity with

U.S. generally accepted accounting principles. Also, in our opinion, the related financial statement schedule, when

considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material

respects, the information set forth therein.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board

(United States), the effectiveness of the Company's internal control over financial reporting as of July 1, 2005, based on

criteria established in Internal Control Ì Integrated Framework issued by the Committee of Sponsoring Organizations of

the Treadway Commission (COSO), and our report dated September 9, 2005 expressed an unqualified opinion on

management's assessment of, and the effective operation of, internal control over financial reporting.

/s/ KPMG LLP

Costa Mesa, California

September 9, 2005

39

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors

Western Digital Corporation:

We have audited management's assessment, included in the accompanying Management's Report on Internal

Control Over Financial Reporting appearing under Item 9A, that Western Digital Corporation maintained effective

internal control over financial reporting as of July 1, 2005, based on criteria established in Internal Control Ì Integrated

Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Western

Digital Corporation management is responsible for maintaining effective internal control over financial reporting and for

its assessment of the effectiveness of internal control over financial reporting. Our responsibility is to express an opinion on

management's assessment and an opinion on the effectiveness of the Company's internal control over financial reporting

based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board

(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about

whether effective internal control over financial reporting was maintained in all material respects. Our audit included

obtaining an understanding of internal control over financial reporting, evaluating management's assessment, testing and

evaluating the design and operating effectiveness of internal control, and performing such other procedures as we

considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding

the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with

generally accepted accounting principles. A company's internal control over financial reporting includes those policies and

procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the

transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded

as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and

that receipts and expenditures of the company are being made only in accordance with authorizations of management and

directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized

acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.

Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become

inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may

deteriorate.

In our opinion, management's assessment that Western Digital Corporation maintained effective internal control

over financial reporting as of July 1, 2005, is fairly stated, in all material respects, based on criteria established in Internal

Control Ì Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission

(COSO). Also, in our opinion, Western Digital Corporation maintained, in all material respects, effective internal

control over financial reporting as of July 1, 2005, based on criteria established in Internal Control Ì Integrated

Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board

(United States), the consolidated balance sheets of Western Digital Corporation and subsidiaries as of July 1, 2005 and

July 2, 2004, and the related consolidated statements of operations, shareholders' equity and comprehensive income, and

cash flows, and the related financial statement schedule for each of the years in the three-year period ended July 1, 2005,

and our report dated September 9, 2005 expressed an unqualified opinion on those consolidated financial statements and

the related financial statement schedule.

/s/ KPMG LLP

Costa Mesa, California

September 9, 2005

40

WESTERN DIGITAL CORPORATION

CONSOLIDATED BALANCE SHEETS(in millions)

July 1, July 2,2005 2004

ASSETS

Current assets:

Cash and cash equivalentsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 485.2 $ 345.5

Short-term investments ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 113.2 32.3

Accounts receivable, net ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 402.9 313.1

Inventories ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 152.9 148.6

Other ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 27.0 17.8

Total current assets ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 1,181.2 857.3

Property and equipment, net ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 395.0 274.7

Intangible and other assets ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 12.4 27.2

Total assets ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $1,588.6 $1,159.2

LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:

Accounts payableÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 569.1 $ 434.9

Accrued expenses ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 154.1 90.4

Accrued warranty ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 75.2 46.4

Current portion of long-term debt ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 20.1 15.2

Total current liabilities ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 818.5 586.9

Long-term debtÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 32.6 52.7

Other liabilitiesÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 35.4 32.0

Commitments and contingent liabilities

Shareholders' equity:

Preferred stock, $.01 par value; authorized Ì 5.0 shares;Outstanding Ì None ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì Ì

Common stock, $.01 par value; authorized Ì 450.0 shares;Outstanding Ì 214.6 shares in 2005 and 208.8 in 2004 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 2.1 2.1

Additional paid-in capital ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 711.1 698.7

Deferred compensation ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (14.6) (1.3)

Retained earnings (accumulated deficit)ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 15.5 (182.9)

Accumulated other comprehensive (loss) income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (0.3) 0.2

Treasury stock Ì common shares at cost; 0.9 shares in 2005 and 2.7 shares in 2004 ÏÏÏ (11.7) (29.2)

Total shareholders' equity ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 702.1 487.6

Total liabilities and shareholders' equity ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $1,588.6 $1,159.2

The accompanying notes are an integral part of these consolidated financial statements.

41

WESTERN DIGITAL CORPORATION

CONSOLIDATED STATEMENTS OF INCOME(in millions, except per share amounts)

Years Ended

July 1, July 2, June 27,2005 2004 2003

Revenue, netÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $3,638.8 $3,046.7 $2,718.5

Cost of revenueÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 3,049.0 2,585.1 2,275.6

Gross margin ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 589.8 461.6 442.9

Operating expenses:

Research and development ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 238.5 201.0 134.7

Selling, general and administrative ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 154.4 105.7 121.4

Total operating expenses ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 392.9 306.7 256.1

Operating income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 196.9 154.9 186.8

Net interest and other income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 5.4 0.3 2.9

Income before income taxes ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 202.3 155.2 189.7

Income tax expenseÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 3.9 3.9 7.6

Net incomeÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 198.4 $ 151.3 $ 182.1

Net income per common share:

Basic ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ .96 $ .74 $ .93

Diluted ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ .91 $ .70 $ .89

Weighted average shares outstanding:

Basic ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 207.6 205.7 195.6

Diluted ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 216.9 216.7 205.5

The accompanying notes are an integral part of these consolidated financial statements.

42

WESTERN DIGITAL CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS(in millions)

Years Ended

July 1, July 2, June 27,2005 2004 2003

Cash flows from operating activities

Net income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 198.4 $ 151.3 $182.1

Adjustments to reconcile net income to net cash provided by operations:

Depreciation and amortizationÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 134.8 101.7 50.4

In-process research and development expenseÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì 25.6 Ì

Deemed interest on debenture redemptions ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì Ì (20.0)

Changes in:

Accounts receivable ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (90.3) (66.5) (25.1)

InventoriesÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (4.2) (41.9) (24.4)

Accounts payable ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 134.2 54.3 57.8

Accrued expensesÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 98.8 (26.8) 33.3

OtherÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (11.0) (7.7) 3.8

Net cash provided by operations ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 460.7 190.0 257.9

Cash flows from investing activities

Capital expenditures, net ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (233.4) (131.7) (61.9)

Purchases of short-term investments ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (95.4) (32.3) Ì

Sales of short-term investments ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 14.5 Ì Ì

Asset acquisition and other investment activities ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì (94.8) 3.4

Net cash used for investing activitiesÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (314.3) (258.8) (58.5)

Cash flows from financing activities

Issuance of common stock under employee plansÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 57.8 23.9 44.3

Repurchase of common stock ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (45.0) (16.0) Ì

Debenture redemptions and extinguishmentsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì Ì (68.3)

Net proceeds from long-term debt ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì 13.8 Ì

Repayment of long-term debt ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (19.5) (0.6) Ì

Other subsidiary financing activity ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì Ì (5.9)

Net cash (used for) provided by financing activities ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (6.7) 21.1 (29.9)

Net increase (decrease) in cash and cash equivalents ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 139.7 (47.7) 169.5

Cash and cash equivalents, beginning of year ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 345.5 393.2 223.7

Cash and cash equivalents, end of year ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 485.2 $ 345.5 $393.2

Supplemental disclosure of cash flow information:

Cash paid during the period for income taxesÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 4.9 $ 3.1 $ 3.5

Cash paid during the period for interest ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 2.9 $ 1.3 $ Ì

Supplemental disclosure of non-cash investing and financing activities:

Equipment additions funded by capital lease obligationsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 4.3 $ 18.5 $ Ì

Common stock issued for extinguishment of convertible debentures ÏÏÏÏÏÏÏÏÏÏ $ Ì $ Ì $ 0.2

The accompanying notes are an integral part of these consolidated financial statements.

43

WES

TER

N D

IGIT

AL C

OR

PO

RA

TIO

N

CO

NS

OLID

ATED

STA

TEM

EN

TS

OF S

HA

REH

OLD

ER

S' EQ

UIT

Y a

nd C

OM

PR

EH

EN

SIV

E IN

CO

ME

(in

millions)

Ret

ained

Additio

nal

Ear

nin

gs

Acc

um

ula

ted

Tota

lTota

lCom

mon S

tock

Tre

asury

Sto

ckPai

d-In

Def

erre

d(Acc

um

ula

ted

Com

pre

hen

sive

Shar

ehold

ers'

Com

pre

hen

sive

Shar

esAm

ount

Shar

esAm

ount

Cap

ital

Com

pen

sation

Def

icit)

Inco

me

(Loss

)Equity

Inco

me

Bal

ance

at Ju

ne

28, 2002ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

195.4

$1.9

(3.3

)$(96.3

)$714.2

$(3.2

)$(516.3

)$

2.6

$102.9

$64.9

ESP

P shar

es issued

ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

1.2

Ì0.9

24.2

(17.0

)7.2

Exe

rcise

of sto

ck o

ption

sÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

6.9

0.1

1.9

57.8

(20.8

)37.1

Shar

es issued

in d

eben

ture red

emption

ÏÏÏÏÏÏÏÏÏÏÏÏ

0.1

Ì0.2

0.2

Deferred c

ompen

sation

planÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

(0.2

)(1.5

)2.0

0.5

Net inco

me

ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

182.1

182.1

$182.1

Rea

lize

d g

ain o

n inve

stm

ent secu

rities, netÏÏÏÏÏÏÏÏÏ

(2.6

)(2.6

)(2.6

)

Bal

ance

at Ju

ne

27, 2003ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

203.6

2.0

(0.7

)(15.8

)676.6

(1.2

)(334.2

)Ì

327.4

$179.5

ESP

P shar

es issued

ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

2.2

9.8

9.8

Exe

rcise

of sto

ck o

ption

sÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

3.0

0.1

0.7

14.7

15.5

Deferred c

ompen

sation

planÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

(0.1

)1.9

(2.4

)(0.1

)(0.6

)

Rep

urchas

e of

com

mon

sto

ckÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

(1.9

)(16.0

)(16.0

)

Net inco

me

ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

151.3

151.3

$151.3

Unrealized

gain o

n for

eign

curren

cy c

ontrac

tsÏÏÏÏÏÏÏ

0.2

0.2

0.2

Bal

ance

at Ju

ly 2

, 2004

ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

208.8

2.1

(2.7

)(29.2

)698.7

(1.3

)(182.9

)0.2

487.6

$151.5

ESP

P shar

es issued

ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

1.6

13.2

(3.8

)9.4

Exe

rcise

of sto

ck o

ption

sÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

4.4

4.8

44.0

4.4

48.4

Deferred c

ompen

sation

planÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

1.4

0.2

5.3

11.8

(13.3

)3.8

Rep

urchas

e of

com

mon

sto

ckÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

(4.8

)(45.0

)(45.0

)

Net inco

me

ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

198.4

198.4

$198.4

Unrealized

los

s on

for

eign

curren

cy c

ontrac

tsÏÏÏÏÏÏÏ

(0.5

)(0.5

)(0.5

)

Bal

ance

at Ju

ly 1

, 2005

ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ

214.6

$2.1

(0.9

)$(11.7

)$711.1

$(14.6

)$

15.5

$(0.3

)$702.1

$197.9

The

acco

mpan

ying

not

es a

re a

n integr

al p

art of

these

conso

lidated

fin

ancial statem

ents.

44

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1. Organization and Summary of Significant Accounting Policies

Western Digital Corporation (the ""Company'' or ""Western Digital'' or ""WD'') designs, develops, manufactures

and sells hard disk drives. A hard disk drive is a device that stores data on one or more rotating magnetic disks to allow

fast access to data. The Company's hard disk drives are used in desktop personal computers, notebook computers,

external storage devices, enterprise applications such as servers, workstations, network attached storage and storage area

networks and in consumer electronics products such as personal/digital video recorders, satellite and cable set-top boxes

and video game consoles. The Company sells its products worldwide to original equipment manufacturers (""OEMs'') for

inclusion in computer systems or subsystems, and to distributors, resellers and retailers.

Western Digital has prepared its consolidated financial statements in accordance with accounting principles generally

accepted in the United States and has adopted accounting policies and practices which are generally accepted in the

industry in which it operates. The Company's significant accounting policies are summarized below.

Fiscal Year

The Company has a 52 or 53-week fiscal year. The 2005 and 2003 fiscal years, which ended on July 1, 2005 and

June 27, 2003, respectively, consisted of 52 weeks each. Fiscal year 2004, which ended on July 2, 2004, was a 53-week

year.

Basis of Presentation

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All

significant intercompany accounts and transactions have been eliminated in consolidation. The accounts of foreign

subsidiaries have been remeasured using the U.S. dollar as the functional currency. As such, gains or losses resulting from

remeasurement of these accounts from local currencies into U.S. dollars are reflected in the results of operations. These

gains and losses were immaterial to the consolidated financial statements. Monetary and nonmonetary asset and liability

accounts have been remeasured using the exchange rate in effect at each year-end and using historical rates, respectively.

Income statement accounts have been remeasured using historical monthly exchange rates.

Cash Equivalents

The Company's cash equivalents represent highly liquid investments, primarily money market funds and

commercial paper, with original maturities of three months or less.

Short-Term Investments

The Company's short-term investments consist primarily of auction rate securities, which are short-term investments

in bonds with original maturities greater than 90 days. The Company has classified these investments as ""available for

sale'' securities under Statement of Financial Accounting Standards No. 115 ""Accounting for Certain Investments in

Debt and Equity Securities'' (""SFAS 115''). These investments are carried at fair value.

Fair Value of Financial Instruments

The carrying amounts of cash and cash equivalents and short-term investments approximate fair value for all periods

presented because of the short-term maturity of these financial instruments. The carrying amount of the Company's term

loan also approximates fair value.

Concentration of Credit Risk

The Company designs, develops, manufactures and markets hard disk drives to personal computer manufacturers,

resellers and retailers throughout the world. The Company performs ongoing credit evaluations of its customers' financial

condition and generally requires no collateral. The Company maintains allowances for potential credit losses, and such

45

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

losses have historically been within management's expectations. At any given point in time, the total amount outstanding

from any one of a number of our customers may be individually significant to the Company's financial results. At July 1,

2005 and July 2, 2004, the Company had reserves for potential credit losses of $3.0 million and $6.1 million,

respectively. The Company also has cash equivalent and short-term investment policies that limit the amount of credit

exposure to any one financial institution or investment instrument and require that investments be made only with

financial institutions or in investment instruments evaluated as highly credit-worthy.

Inventory Valuation

Inventories are valued at the lower of cost or net realizable value. Cost is on a first-in, first-out basis for raw materials

and is computed on a currently adjusted standard basis (which approximates first-in, first-out) for work in process and

finished goods.

Property and Equipment

The cost of property and equipment is depreciated over the estimated useful lives of the respective assets. The

Company's buildings are being depreciated over periods ranging from seven to fifteen years. The majority of the

Company's equipment is being depreciated over periods of three and five years. Depreciation is computed on a straight-

line basis. Leasehold improvements are amortized over the lesser of the estimated useful lives of the assets or the related

lease terms.

Intangible Assets

Intangible assets consist of purchased technology acquired during a 2004 asset acquisition. These assets are being

amortized over a weighted average period of three years.

Revenue Recognition

The Company recognizes revenue in accordance with SEC Staff Accounting Bulletin No. 104, ""Revenue

Recognition in Financial Statements'' (""SAB 104''). Under SAB 104 revenue is recognized when the title and risk of

loss have passed to the customer, there is persuasive evidence of arrangement, delivery has occurred, or services have been

rendered, the sales price is determinable and collectibility is reasonably assured. Revenue is recognized at the time of

shipment for the Company's OEM customers and at the time of delivery for its reseller customers.

In accordance with standard industry practice, the Company has agreements with resellers that provide price

protection for inventories held by resellers at the time of published list price reductions and other incentive programs.

Either party may terminate these agreements upon written notice. In the event of termination, the Company may be

obligated to repurchase a certain portion of the resellers' inventory. The Company records a reduction to revenue for

estimated price protection and other programs in effect until the resellers sell such inventory to their customers.

Adjustments are based on anticipated price decreases during the reseller holding period, estimated amounts to be

reimbursed to qualifying customers, as well as historical pricing information. If end-market demand for hard disk drives

declines significantly, the Company may have to increase sell-through incentive payments to resellers, resulting in an

increase in price protection allowances, which could adversely impact operating results. Net revenue recognized on sales to

resellers was approximately $1.5 billion, $1.5 billion and $1.3 billion in 2005, 2004 and 2003, respectively. Repurchases

of reseller inventory were not material in 2005, 2004 or 2003.

Western Digital establishes an allowance for doubtful accounts by analyzing specific customer accounts and assessing

the risk of loss based on insolvency, disputes or other collection issues. In addition, the Company routinely analyzes the

different receivable aging categories and its bad debt loss history and establishes reserves based on a combination of past

due receivables and expected future losses based primarily on the Company's historical levels of bad debt losses. If the

46

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

financial condition of a significant customer deteriorates resulting in its inability to pay its accounts when due, or if the

overall loss history of the Company changes significantly, an adjustment in the Company's allowance for doubtful

accounts would be required, which could affect operating results.

Warranty

The Company records an accrual for estimated warranty costs as products are sold. Warranty covers costs of repair or

replacement of the hard disk drive over the warranty period, which ranges from one to five years and is recorded in the

accompanying balance sheet as current or long-term based upon when the expenditure is expected to occur. The Company

has comprehensive processes with which to estimate accruals for warranty, which include specific detail on hard disk

drives in the field by product type, historical field return rates and costs to repair. Although the Company believes that it

has the continued ability to reasonably estimate warranty reserves, unforeseeable changes could cause a material change in

the Company's warranty accrual estimate. Such a change would be recorded in the period in which it was identified.

Advertising Expense

Advertising costs are expensed as incurred. Selling, general and administrative expenses of the Company include

advertising costs of $1.5 million, $1.5 million and $3.4 million in 2005, 2004 and 2003, respectively.

Income Taxes

The Company accounts for income taxes under the asset and liability method, which provides that deferred tax

assets and liabilities be recognized for temporary differences between the financial reporting basis and the tax basis of the

Company's assets and liabilities and expected benefits of utilizing net operating loss (""NOL'') carryforwards. The

Company records a valuation allowance where it is more likely than not that the deferred tax assets will not be realized.

The impact on deferred taxes of changes in tax rates and laws, if any, are applied to the years during which temporary

differences are expected to be settled and reflected in the consolidated financial statements in the period of enactment.

The Company records estimated tax liabilities to the extent the contingencies are probable and can be reasonably

estimated. However, the actual liability for any such tax contingencies may be materially different from the estimates,

which could result in the need to record additional tax liabilities or adjust previously recorded tax liabilities.

Per Share Information

The Company computes basic income per share using the net income and the weighted average number of common

shares outstanding during the period. Diluted income per share is computed using the net income and the weighted

average number of common shares and potentially dilutive common shares outstanding during the period. Potentially

dilutive common shares include outstanding employee stock options, employee stock purchase plan shares and restricted

stock awards.

47

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

The following table illustrates the computation of basic and diluted income per common share (in millions, except

per share data):

Year Ended

July 1, July 2, June 27,2005 2004 2003

(in millions,except per share amounts)

Net income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $198.4 $151.3 $182.1

Weighted average shares outstanding:

Basic ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 207.6 205.7 195.6

Employee stock options and other ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 9.3 11.0 9.9

Diluted ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 216.9 216.7 205.5

Income per share:

Basic ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ .96 $ .74 $ .93

Diluted ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ .91 $ .70 $ .89

For the years ended July 1, 2005, July 2, 2004 and June 27, 2003, 6.0 million, 6.0 million and 9.0 million shares,

respectively, relating to the possible exercise of outstanding stock options were not included in the computation of diluted

income per share. The effects of these items were not included in the computation of diluted income per share as their

effect would have been anti-dilutive.

Stock-Based Compensation

Statement of Financial Accounting Standards No. 123, ""Accounting for Stock-Based Compensation''

(""SFAS 123''), establishes the financial accounting and reporting standards for stock-based compensation plans. As

permitted by SFAS 123, the Company elected to continue accounting for stock-based employee compensation plans

(including shares issued under the Company's stock option plans and Employee Stock Purchase Plan (""ESPP''),

collectively called ""Options'') in accordance with Accounting Principles Board Opinion No. 25, ""Accounting for Stock

Issued to Employees'' and its related interpretations (""APB Opinion No. 25''), and to follow the pro forma net income,

pro forma income per share, and stock-based compensation plan disclosure requirements set forth in SFAS 123. The

following table sets forth the computation of basic and diluted earnings per share for each of the past three fiscal years and

48

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

illustrates the effect on net income and earnings per share as if the Company had applied the fair value recognition

provisions of SFAS 123 to stock-based employee compensation.

Year Ended

July 1, July 2, June 27,2005 2004 2003

(in millions,except per share amounts)

Net income

As reported ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $198.4 $151.3 $182.1

Stock-based employee compensation included in reported earnings ÏÏÏÏÏ 3.8 1.3 2.0

Stock-based employee compensation expense determined under fair-valuebased methods for all awardsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (28.5) (28.0) (27.3)

Pro forma net income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $173.7 $124.6 $156.8

Basic income per share:

As reported ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 0.96 $ 0.74 $ 0.93

Pro forma ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 0.84 $ 0.61 $ 0.80

Diluted income per share:

As reported ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 0.91 $ 0.70 $ 0.89

Pro forma ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 0.81 $ 0.58 $ 0.77

The pro forma income per share information for all stock options granted on or prior to December 31, 2004, as well

as all ESPP shares granted on or prior to July 1, 2005, is estimated using the Black-Scholes option-pricing model. The

Black-Scholes option-pricing model was developed for use in estimating the fair value of traded options that have no

vesting restrictions and are fully transferable. For stock options granted subsequent to December 31, 2004, the pro forma

income per share information is estimated using a binomial model. Both the Black-Scholes and the binomial option

pricing models require the input of highly subjective assumptions such as the expected stock price volatility and expected

employee exercise behavior. The resulting fair value of employee stock options is amortized on a straight-line basis over

the vesting period of the options.

Other Comprehensive Income

Other comprehensive income refers to revenue, expenses, gains and losses that are recorded as an element of

shareholders' equity but are excluded from net income. The Company's other comprehensive income is comprised of

unrealized gains and losses on foreign currency contracts and marketable securities categorized as available for sale under

SFAS 115.

Foreign Exchange Contracts

Although the majority of the Company's transactions are in U.S. Dollars, some transactions are based in various

foreign currencies. The Company purchases short-term, forward exchange contracts to hedge the impact of foreign

currency fluctuations on certain underlying assets, liabilities and commitments for operating expenses and product costs

denominated in foreign currencies. The contracts have maturity dates that do not exceed six months. The Company does

not purchase short-term forward exchange contracts for trading purposes.

The Company applies the provisions of Statement of Financial Accounting Standards No. 133, ""Accounting for

Derivative Instruments and Hedging Activities'' (""SFAS 133''), as amended by Statement of Financial Accounting

Standards No. 138, ""Accounting for Certain Derivative Instruments and Certain Hedging Activities, an Amendment of

FASB Statement No. 133'' and Statement of Financial Accounting Standards No. 149 ""Amendment of Statement 133

49

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

on Derivative Instruments and Hedging Activities.'' SFAS 133, as amended, establishes accounting and reporting

standards for derivative instruments embedded in other contracts and for hedging activities. The Company had

outstanding forward exchange contracts with commercial banks for the Thai Baht, British Pound Sterling and Euro with

values of $151.4 million and $173.7 million at July 1, 2005 and July 2, 2004, respectively. Thai Baht contracts are

designated as cash flow hedges under SFAS No. 133 while all other contracts are designated as fair value hedges under

Statement of Financial Accounting Standards No. 52 ""Foreign Currency Translation.'' Changes in fair value on these

contracts were not material to the consolidated financial statements for all years presented.

Use of Estimates

Company management has made estimates and assumptions relating to the reporting of certain assets and liabilities

in conformity with generally accepted accounting principles. These estimates and assumptions have been applied using

methodologies, which are consistent throughout the periods presented. However, actual results could differ from these

estimates.

New Accounting Standards

In November 2004, the Financial Accounting Standards Board (""FASB'') issued Statement of Financial

Accounting Standards No. 151, ""Inventory Costs, an Amendment of ARB No. 43, Chapter 4'' (""SFAS No. 151''),

which clarifies the accounting for abnormal amounts of idle facility expense, freight, handling costs and wasted material

(spoilage) and requires those items be recognized as current period charges regardless of whether they meet the definition

of ""so abnormal''. SFAS No. 151 is effective for inventory costs incurred during fiscal years beginning after June 15,

2005. The Company does not expect the adoption of SFAS No. 151 to have a material impact on its financial statements.

In December 2004, the FASB issued revised statement SFAS No. 123, ""Share-Based Payment''

(SFAS No. 123-R), which supersedes APB Opinion No. 25 and replaces the current SFAS No. 123. SFAS No. 123-R

requires companies to expense the estimated fair value of employee stock options and similar awards and provides

guidance on the valuation methods used in determining the estimated fair value. The provisions of SFAS No. 123-R will

be effective beginning with the Company's first quarter of fiscal year 2006. Under SFAS No. 123-R, compensation

expense for existing awards where the requisite service period has not been completed by the effective date will be

charged to expense over the remaining service period using the same fair value currently calculated for pro forma

disclosure purposes under SFAS No. 123. For fiscal year 2005, the proforma net impact of stock option expense as

reported in footnote 1 to the consolidated financial statements was approximately $25 million. The Company is currently

in the process of determining the impact of SFAS 123-R on its 2006 financial statements. The actual effect of adopting

SFAS 123R will be dependent on several factors including the levels and timing of future share-based payment grants,

the assumed award forfeiture rate and the method of recognizing the fair value of awards over the service period.

In March 2005, the FASB issued FIN 47, ""Accounting for Conditional Asset Retirement Obligations, an

interpretation of FASB Statement No. 143'' (""FIN 47''), which requires an entity to recognize a liability for the fair

value of a conditional asset retirement obligation when incurred if the liability's fair value can be reasonably estimated.

FIN 47 is effective for fiscal years ending after December 15, 2005. The Company does not expect the adoption of

FIN 47 to have a material impact on its financial statements.

Reclassifications

Certain prior period amounts have been reclassified to conform to current period presentation, including the

following (in millions):

Current Previous2004 Classification Classification

Cash and cash equivalents ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $345.5 $377.8

Short-term investments ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 32.3 Ì

50

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

Current Previous2003 Classification Classification

Deemed interest on debenture redemptions ÏÏ $(20.0) $ Ì

Net cash provided by operations ÏÏÏÏÏÏÏÏÏÏ 257.9 277.9

Debenture redemptions and extinguishments ÏÏ (68.3) (88.3)

Net cash used for financing activities ÏÏÏÏÏÏÏ (29.9) (49.9)

Note 2. Supplemental Financial Statement Data (in millions)

Years Ended

July 1, July 2, June 27,2005 2004 2003

Net Interest and Other Income

Interest income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 8.7 $ 2.4 $ 3.8

Interest and other expense ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (3.3) (2.1) (5.3)

Gain on investments ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì Ì 3.1

Other gains ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì Ì 1.3

Net interest and other incomeÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 5.4 $ 0.3 $ 2.9

July 1, July 2,2005 2004

Inventories

Finished goodsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 78.7 $ 70.6

Work in process ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 59.7 51.6

Raw materials and component parts ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 14.5 26.4

$ 152.9 $ 148.6

Property and Equipment

Land and buildings ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 77.5 $ 73.0

Machinery and equipmentÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 708.0 521.2

Machinery and equipment recorded under capital leases ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 22.8 18.5

Furniture and fixtures ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 7.6 7.0

Leasehold improvements ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 29.2 28.8

845.1 648.5

Accumulated depreciation ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (450.1) (373.8)

Net property and equipmentÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 395.0 $ 274.7

Accumulated depreciation on machinery and equipment recorded under capital leases was $4.0 million and $0 as of

July 1, 2005 and July 2, 2004, respectively.

Note 3. Read-Rite Asset Acquisition

In June 2003, Read-Rite Corporation (""Read-Rite''), then one of the Company's suppliers of magnetic recording

heads, commenced voluntary Chapter 7 bankruptcy proceedings. On July 31, 2003, Western Digital purchased

substantially all of the assets of Read-Rite, including its wafer fabrication equipment in Fremont, California and

manufacturing facility in Bang Pa-In, Thailand. The cost of the acquisition was $172.0 million and consisted of cash

consideration of $94.8 million, assumed debt obligations of the Thailand operations of approximately $60.2 million and

51

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

direct costs of the acquisition and other miscellaneous assumed obligations totaling $17.0 million. The Company

accounted for this transaction as an asset acquisition. The estimated fair value of the assets acquired and liabilities

assumed are as follows (in millions):

Current assetsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 17.4

Property and equipment ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 90.2

Purchased technology ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 38.8

In-process research and development ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 25.6

$172.0

As of the date of the acquisition, Read-Rite had two in-process research and development (""IPR&D'') projects:

120 gigabyte per platter and 160 gigabyte per platter products. The fair value allocated to these projects as part of the

acquisition was $17.8 million and $7.8 million, respectively. The multi-period excess earnings method, a discounted cash

flow income approach, was used to determine the value allocated to the IPR&D. The rate utilized to discount the cash

flows to their present values was based on the weighted average cost of capital and an additional risk premium based on

an analysis of the technology and the IPR&D stages of completion. Based on these factors, 27% was used as the annual

discount rate. These acquired IPR&D projects had not reached technological feasibility and had no alternative future use.

Accordingly, the Company recorded the $25.6 million as a charge to research and development expense at the time of the

acquisition.

Approximately $38.8 million of the purchase price related to purchased technology and is being amortized over a

weighted average period of three years. Accumulated amortization related to these assets was $27.6 million and

$13.2 million at July 1, 2005 and July 2, 2004, respectively. During the fiscal years ended July 1, 2005 and July 2,

2004, the Company recorded $14.4 million and $13.2 million of amortization expense related to these intangible assets,

respectively. Amortization expense is estimated to be $4.4 million, $3.4 million and $3.4 million for fiscal years 2006,

2007 and 2008, respectively.

Note 4. Short-term Borrowings and Long-term Debt

Short-term borrowings and long-term debt consisted of the following as of July 1, 2005 and July 2, 2004 (in

millions):

2005 2004

Term loanÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 37.5 $ 50.0

Capital lease obligations (See Note 5) ÏÏÏÏÏÏÏÏÏÏÏÏÏ 15.2 17.9

Total ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 52.7 67.9

Less amounts due in one year ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (20.1) (15.2)

$ 32.6 $ 52.7

Line of Credit

The Company has a $125 million credit facility (""Senior Credit Facility'') revolving credit line (subject to

outstanding letters of credit and a borrowing base calculation) and a term loan of $38 million. Both the revolving credit

facility and the term loan mature on September 19, 2008 and are secured by the Company's accounts receivable,

inventory, 65% of its stock in its foreign subsidiaries and other assets. For the year ended July 1, 2005, the Company had

no borrowings on the revolving credit line and the average variable rate on the Company's term loan was 4.5%.

The Senior Credit Facility prohibits the payment of cash dividends on common stock and contains specific financial

covenants. The Company is required to maintain an available liquidity level of $300 million at the end of each quarter.

Available liquidity is defined as cash plus eligible trade receivables. As of July 1, 2005, the Company was in compliance

52

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

with this covenant. Should the Company's available liquidity be less than $300 million, the Company would then be

subject to minimum EBITDA (earnings before interest, taxes, depreciation and amortization) requirements and capital

expenditure limitations.

The term loan requires quarterly principal payments of approximately $3 million. Principal payments made on the

term loan increase the amount of revolving credit available. At July 1, 2005, $84.5 million was available for borrowing

under the revolving credit line and the Company had $3 million in outstanding letters of credit.

Note 5. Commitments and Contingencies

Lease Commitments

The Company leases certain facilities and equipment under long-term, non-cancelable operating and capital leases.

The Company's operating leases consist of leased property and equipment that expire at various dates through 2012.

Rental expense under these operating leases, including month-to-month rentals, was $16.2 million, $14.9 million and

$11.4 million in 2005, 2004 and 2003, respectively. The Company's capital leases consist of leased equipment. These

leases have maturity dates through August 31, 2007 and interest rates averaging approximately 4.5%. Future minimum

lease payments under operating and capital leases that have initial or remaining non-cancelable lease terms in excess of one

year at July 1, 2005 are as follows (in millions):

Operating Capital

2006 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $11.7 $ 8.1

2007 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 11.0 7.5

2008 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 9.6 0.3

2009 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 7.9 Ì

2010 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 7.9 Ì

Thereafter ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 12.2 Ì

Total future minimum paymentsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $60.3 $15.9

Less: interest on capital leases ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (0.7)

Total principal payable on capital leases ÏÏÏÏÏÏÏÏÏ $15.2

Product Warranty Liability

The Company records a provision for estimated warranty costs as products are sold to cover the cost of repair or

replacement of the hard disk drive during the warranty period. This provision is based on estimated future returns within

the warranty period and costs to repair, using historical field return rates by product type and current average repair cost.

Changes in the warranty provision were as follows for the years ended July 1, 2005, July 2, 2004 and June 27, 2003 (in

millions):

2005 2004 2003

Beginning balance ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 56.8 $ 52.9 $ 47.4

Charges to operationsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 82.0 60.6 54.6

Utilization ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (46.3) (55.1) (53.8)

Changes in liability related to pre-existingwarrantiesÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (0.6) (1.6) 4.7

Ending balanceÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 91.9 $ 56.8 $ 52.9

The warranty provision includes amounts classified in non-current liabilities of $16.7 million at July 1, 2005 and

$10.4 million at July 2, 2004.

53

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

Long-term Purchase Agreements

The Company has entered into long-term purchase agreements with various component suppliers. The commit-

ments depend on specific products ordered and may be subject to minimum quality requirements and future price

negotiations. For 2006, 2007, and 2008, WD expects these commitments to total approximately $460 million,

$670 million, and $340 million, respectively. No purchases were made under these long-term purchase agreements in

2005. In conjunction with these agreements, the Company has advanced approximately $13 million related to 2006

purchase commitments, which is included in other current assets as of July 1, 2005.

Note 6. Legal Proceedings

In June 1994, Papst Licensing (""Papst'') brought suit against the Company in the United States District Court for

the Central District of California, alleging infringement by the Company of five hard disk drive motor patents owned by

Papst. In December 1994, Papst dismissed its case without prejudice. In July 2002, Papst filed a new complaint against

the Company and several other defendants. The suit alleged infringement by the Company of seventeen of Papst's patents

related to hard disk drive motors that the Company purchased from motor vendors. Papst sought an injunction and

damages. The Company filed an answer on September 4, 2002, denying Papst's complaint. On December 11, 2002, the

lawsuit was transferred to the United States District Court for the Eastern District of Louisiana and included in the

consolidated pre-trial proceedings occurring there. The lawsuit was stayed pending the outcome of certain other related

litigation.

On July 4, 2005, the Company entered into a Settlement and License Agreement with Papst. In connection with the

settlement, the Company made a one-time payment of $24 million to Papst on July 29, 2005, of which $19 million

represented a charge to selling, general and administrative expense for the Company's fiscal fourth quarter and $5 million

had been accrued in a prior year. In exchange for the payment, Papst has dismissed with prejudice its lawsuit pending

against the Company, granted the Company a fully-paid license to certain patents owned by Papst, and released the

Company of all past, present and future claims alleging infringement by the Company of those Papst patents. The

Settlement and License Agreement resolved all outstanding litigation between the two companies without any admission

of infringement by the Company.

In the normal course of business, the Company is subject to legal proceedings, lawsuits and other claims. Although

the ultimate aggregate amount of monetary liability or financial impact with respect to these matters is subject to many

uncertainties and is therefore not predictable with assurance, management believes that any monetary liability or financial

impact to the Company from these matters, individually and in the aggregate, beyond that provided at July 1, 2005,

would not be material to the Company's financial condition. However, there can be no assurance with respect to such

result, and monetary liability or financial impact to the Company from these legal proceedings, lawsuits and other claims

could differ materially from those projected.

Note 7. Shareholders' Equity

Stock Incentive Plans

The Company has four stock-based incentive plans (collectively referred to as the ""Stock Plans''): The 2004

Performance Incentive Plan, the Employee Stock Option Plan, the Broad-Based Stock Incentive Plan and the Stock

Option Plan for Non-Employee Directors. Subsequent to the expiration of the Employee Stock Option Plan on

November 10, 2004 and approval of the 2004 Performance Incentive Plan by the Company's shareholders on

November 18, 2004, no new awards are permitted under the Employee Stock Option Plan, the Broad-Based Stock

Incentive Plan or the Stock Option Plan for Non-Employee Directors (collectively referred to as the ""Prior Stock Plans'').

As of July 1, 2005, options to purchase 17.4 million shares of the Company's common stock remain outstanding under

the Prior Stock Plans, of which 11.4 million shares were exercisable and 0.3 million shares of restricted stock remain

unvested. Options granted under the Prior Stock Plans were generally issued at the fair market value at the date of grant

54

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

and vested over periods from one to four years. Options granted under the Prior Stock Plans expire either five or ten years

from the date of grant.

In November 2004, the Company's shareholders approved the 2004 Performance Incentive Plan. The types of

awards that may be granted under the 2004 Performance Incentive Plan include stock options, stock appreciation rights,

restricted stock, stock bonuses and other forms of awards granted or denominated in the Company's common stock or

units of the Company's common stock, as well as certain cash bonus awards. Persons eligible to receive awards under the

2004 Performance Incentive Plan include officers or employees of the Company or any of its subsidiaries, directors of the

Company and certain consultants and advisors to the Company or any of its subsidiaries. The vesting of awards under the

Performance Incentive Plan is determined at the date of grant by the Compensation Committee of the Board of Directors.

Each award expires on a date determined at the date of grant; however, the maximum term of options, stock appreciation

rights and other rights to acquire common stock under the 2004 Performance Incentive Plan is ten years after the grant

date of the award.

As of July 1, 2005, the maximum number of shares of the Company's common stock that are authorized for award

grants under the 2004 Performance Incentive Plan is 8.4 million shares. Any shares subject to awards under the Prior

Stock Plans that are cancelled, forfeited, or otherwise terminate without having vested or been exercised, as applicable,

will become available for other award grants under the 2004 Performance Incentive Plan. The 2004 Performance

Incentive Plan will terminate on September 21, 2014 unless terminated earlier by the Company's Board of Directors.

The following table summarizes activity under the Stock Plans (in millions, except per share amounts):

Weighted AverageNumber Exercise Priceof Shares Per Share

Options outstanding at June 28, 2002 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 29.1 $ 6.54

Granted ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 5.6 4.61

ExercisedÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (8.8) 4.19

Canceled or expired ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (0.9) 7.69

Options outstanding at June 27, 2003 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 25.0 6.89

Granted ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 4.4 11.70

ExercisedÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (3.0) 5.08

Canceled or expired ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (1.3) 10.94

Options outstanding at July 2, 2004ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 25.1 7.75

Granted ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 4.4 10.05

ExercisedÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (9.2) 5.26

Canceled or expired ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (0.8) 9.07

Options outstanding at July 1, 2005ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 19.5 9.39

55

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

The following tables summarize information about options outstanding and exercisable under the Stock Plans at

July 1, 2005 (in millions, except per share amounts):

Options Outstanding Options Exercisable

RemainingRange of Number Contractual Life* Weighted Average Number Weighted Average

Exercise Prices of Shares (in years) Exercise Price of Shares Exercise Price

$ 2.10 Ó 3.47 2.0 5.61 $ 2.39 1.8 $ 2.41

3.50 Ó 3.85 2.0 6.66 3.81 1.1 3.78

3.87 Ó 6.00 2.7 5.38 5.24 2.5 5.27

6.05 Ó 8.58 1.9 5.73 7.61 1.5 7.67

8.62 Ó 8.89 2.3 9.17 8.88 0.1 8.69

8.99 Ó 11.22 1.9 8.01 10.04 0.5 10.00

11.27 Ó 12.84 3.4 6.29 12.34 1.6 12.18

12.87 Ó 14.94 2.0 5.84 13.23 1.0 13.00

15.06 Ó 48.50 1.3 2.22 26.00 1.3 26.11

Total19.5 6.26 9.39 11.4 9.29

* Represents the weighted average remaining contractual lives of the options outstanding.

Deferred Stock Compensation

The Company granted approximately 1.6 million and 0.1 million shares of restricted stock during 2005 and 2004,

respectively. No shares of restricted stock were issued in 2003. The restricted stock vests annually over periods from two

to four years. The aggregate market value of the restricted stock at the date of issuance was $17.1 million and

$1.3 million in 2005 and 2004, respectively. These amounts have been recorded as deferred compensation, a separate

component of shareholders' equity, and are being amortized to operating expense over the corresponding vesting periods.

During 2005, the Company also awarded certain executives and other key employees 0.5 million restricted stock

units with performance-based vesting (""Performance Shares''). The Performance Shares which are earned will become

payable in August 2008 in the form of Western Digital common stock on a one-for-one basis. Compensation expense

related to these performance shares was $0.7 million in 2005.

Employee Stock Purchase Plan

The Company had an employee stock purchase plan (""ESPP'') that operated in accordance with Section 423 of the

Internal Revenue Code whereby eligible employees could authorize payroll deductions of up to 10% of their salary to

purchase shares of the Company's common stock at 85% of the fair market value of common stock on the date of grant

or the exercise date, whichever was less. Approximately 2.8 million shares of common stock remained unissued under this

plan at July 1, 2005. Approximately 1.6 million, 2.2 million and 2.1 million shares were issued under this plan during

2005, 2004 and 2003, respectively. Effective August 1, 2005, the Company suspended its ESPP.

56

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

Stock Reserved for Issuance

The following table summarizes all shares of common stock reserved for issuance at July 1, 2005 (in millions):

Numberof Shares

Maximum shares issuable in connection with:

Outstanding awards and shares available for award grants ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 23.4

Employee stock purchase plan ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 2.8

26.2

Fair Value Disclosures

Pro forma information regarding net income and earnings per share is required by SFAS 123. This information is

required to be determined as if the Company had accounted for its stock options (including shares issued under the Stock

Incentive Plans and the ESPP, collectively called ""Options'') granted subsequent to July 1, 1995, under the fair value

method of that statement (see Note 1 for further information on pro forma net income and earnings per share).

The pro forma income per share information for all stock options granted on or prior to December 31, 2004 as well

as all ESPP shares granted on or prior to July 1, 2005 was estimated using the Black-Scholes option-pricing model. The

Black-Scholes option-pricing model was developed for use in estimating the fair value of traded options that have no

vesting restrictions and are fully transferable. The Black-Scholes option pricing model requires the input of highly

subjective assumptions such as the expected stock price volatility and the expected period until options are exercised. The

pro forma impact of applying SFAS 123 at July 1, 2005 is not necessarily representative of future periods.

The fair values of the 2.5 million stock options granted on or prior to December 31, 2004, all ESPP shares granted

on or prior to July 1, 2005 as well as all stock options granted in fiscal years 2004 and 2003 have been estimated at the

date of grant using a Black-Scholes option-pricing model with the following weighted average assumptions:

Stock Option Plans ESPP

2005 2004 2003 2005 2004 2003

Option life (in years)ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 4.51 3.94 3.75 1.25 1.25 1.25

Risk-free interest rate ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 3.23% 1.65% 3.31% 2.25% 1.09% 1.93%

Stock price volatility ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 0.74 0.75 0.88 0.55 0.77 0.88

Dividend yield ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì Ì Ì Ì Ì Ì

Fair value ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $5.33 $6.56 $2.89 $3.00 $4.73 $2.64

Effective for the 1.9 million options granted after December 31, 2004, the pro forma income per share information

was estimated using a binomial model. The binomial model requires the input of highly subjective assumptions

including the expected stock price volatility, the expected price multiple at which employees are likely to exercise options

and the expected employee termination rate.

The fair value of 2005 options valued using the binomial model has been estimated using the following

assumptions:

2005

Weighted average suboptimal exercise factorÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 1.79

Range of risk-free interest rates ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 3.34% to 4.46%

Range of expected stock price volatilitiesÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 0.43 to 0.84

Weighted average post-vesting termination rate ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 13.54%

Dividend yield ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ì

Weighted average fair value ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $4.86

57

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

Stock Repurchase Program

WD announced a stock repurchase program on May 5, 2004. Under the program, the Company may purchase on

the open market up to $100 million of its common stock depending on market conditions and other corporate

considerations. Stock repurchases are expected to be funded principally by operating cash flow. During 2005, WD

repurchased 4.8 million shares of common stock at a total cost of $45.0 million. In addition, between July 2, 2005 and

September 9, 2005 the company repurchased 0.4 million shares of common stock at a cost of $5.6 million. Since the

inception of the program, and through September 9, 2005, the Company has repurchased 7.1 million shares for a total

cost of $66.6 million (including commissions). WD may continue to repurchase its stock as it deems appropriate and

market conditions allow.

Stock Purchase Rights

In 1989, the Company implemented a plan to protect shareholders' rights in the event of a proposed takeover of the

Company. Under the plan, each share of the Company's outstanding common stock carried one Right to Purchase

Series A Junior Participating Preferred Stock (the ""Right''). The Right enabled the holder, under certain circumstances,

to purchase common stock of Western Digital or of an acquiring company at a substantially discounted price ten days

after a person or group publicly announces it has acquired or has tendered an offer for 15% or more of the Company's

outstanding common stock. On September 10, 1998, the Company's Board of Directors approved the adoption of a new

Rights plan to replace the previous plan, which expired in September 1998. The Rights under the 1998 plan were similar

to the rights under the 1989 plan except they were redeemable by the Company at $.01 per Right and expired in 2008.

In connection with the establishment of a holding company structure on April 6, 2001, the Company terminated the

Rights under the 1998 plan and adopted a new Rights plan. The 2001 plan is similar to the terminated 1998 plan,

except that the exercise price was reduced from $150.00 to $50.00 per share and the expiration date for the 2001 Rights

plan was extended to April 2011.

Note 8. The Western Digital Corporation 401(k) Plan

Effective July 1, 1991, the Company adopted the Western Digital Corporation 401(k) Plan (the ""Plan'') formerly

known as the Western Digital Corporation Retirement Savings and Profit Sharing Plan. The Plan covers substantially all

domestic employees, subject to certain eligibility requirements. The Company may make annual contributions to the Plan

at the discretion of the Board of Directors. For 2005, 2004 and 2003 the Company made contributions to the Plan of

$3.0 million, $2.9 million and $1.8 million, respectively.

Note 9. Business Segment, International Operations and Major Customers

Segment Information

As of July 1, 2005, the Company operated in one segment, the hard disk drive business.

58

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

International Operations

The Company's operations outside the United States include manufacturing facilities in Malaysia and Thailand as

well as sales offices throughout Canada, Europe, Asia, Japan, India and the Middle East. The following table summarizes

the Company's operations by geographic areas for the past three years for the years ended July 1, 2005, July 2, 2004 and

June 27, 2003.

2005 2004 2003

(in millions)

Revenue from external customers(1):

United States ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $1,268 $1,141 $1,109

Asia ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $1,197 $ 885 $ 599

Europe, the Middle East and AfricaÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $1,069 $ 901 $ 810

OtherÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 105 $ 120 $ 201

Total ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $3,639 $3,047 $2,719

Long-lived assets:

United States ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 163 $ 121 $ 16

Asia ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 244 $ 181 $ 106

Europe, the Middle East and AfricaÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ Ì $ Ì $ Ì

OtherÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ Ì $ Ì $ Ì

Total ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 407 $ 302 $ 122

(1) Revenue is attributed to geographic regions based on location of customer.

Major Customers

During 2005 and 2004, sales to Dell accounted for 16% and 14% of the Company's revenue, respectively. During

2003, sales to Dell and Hewlett-Packard accounted for 20% and 13% of revenue, respectively.

Note 10. Income Taxes

The domestic and international components of income (loss) before income taxes were as follows for the years ended

July 1, 2005, July 2, 2004 and June 27, 2003 (in millions):

2005 2004 2003

InternationalÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $236.2 $199.4 $124.8

Domestic ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (33.9) (44.2) 64.9

Income before income taxes ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $202.3 $155.2 $189.7

The components of the provisions for income taxes were as follows for the years ended July 1, 2005, July 2, 2004

and June 27, 2003 (in millions):

2005 2004 2003

Current

InternationalÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $2.6 $1.8 $3.4

Domestic-state ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 0.7 0.3 0.2

Domestic-federal ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 0.6 1.8 4.0

Income tax expense ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $3.9 $3.9 $7.6

59

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

The tax benefits associated with the exercise of non-qualified stock options, the disqualifying disposition of stock

acquired with incentive stock options and the disqualifying disposition of stock acquired under the employee stock purchase

plan generally reduce taxes currently payable. However, no amounts were recorded to additional paid-in capital in 2005,

2004 and 2003 because their realization did not meet the ""more likely than not'' standard and, consequently, a valuation

allowance was recorded against the entire benefit. The valuation allowance attributable to benefits to be potentially

recognized in the future related to stock option deductions was approximately $56.9 million as of July 1, 2005.

Temporary differences and carryforwards, which give rise to a significant portion of deferred tax assets and liabilities

as of July 1, 2005 and July 2, 2004 were as follows (in millions):2005 2004

Deferred tax assets:

NOL carryforwardÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 195.4 $ 240.5

Reserves and accrued expenses not currently deductible ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 81.5 68.3

Business credit carryforward ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 55.3 47.5

All other ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 28.1 18.5

360.3 374.8

Valuation allowanceÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (360.3) (374.8)

Total deferred tax assets ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ Ì $ Ì

Reserves and accrued expenses not currently deductible consisted of the following as of July 1, 2005 and July 2,

2004 (in millions):2005 2004

Sales related reserves and adjustments ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $58.6 $42.4

Accrued compensation and benefitsÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 10.2 10.8

Other accrued liabilities ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 10.2 13.2

Inventory reserves and adjustments ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 2.5 1.9

Total reserves and accrued expenses not currently deductible ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $81.5 $68.3

Remaining net undistributed earnings from foreign subsidiaries at July 1, 2005 on which no United States tax has

been provided amounted to approximately $606.2 million. The net undistributed earnings are intended to finance local

operating requirements. Accordingly, an additional United States tax provision has not been made on these earnings.

The Company determines deferred taxes for each of its tax-paying subsidiaries within each tax jurisdiction. The

deferred tax assets indicated above are attributable primarily to tax jurisdictions where a history of earnings has not been

established. The taxable earnings in these tax jurisdictions are subject to volatility. Therefore, the Company believes a

valuation allowance is needed to reduce the deferred tax asset to an amount that is more likely than not to be realized.

Reconciliation of the United States Federal statutory rate to the Company's effective tax rate is as follows for the

years ended July 1, 2005, July 2, 2004 and June 27, 2003:2005 2004 2003

U.S. Federal statutory rate ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 35.0% 35.0% 35.0%

Tax rate differential on international income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (39.9) (43.8) (21.9)

Utilization of NOL carryforward ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (20.3) 0.0 (23.5)

Tax effect of repatriation ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 15.2 0.0 14.7

Change in valuation allowance ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 13.1 8.7 (4.2)

OtherÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (1.5) 2.4 3.8

State income taxes, netÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 0.3 0.2 0.1

Effective tax rate ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 1.9% 2.5% 4.0%

60

WESTERN DIGITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Ì (Continued)

A substantial portion of the Company's manufacturing operations in Malaysia and Thailand operate under various

tax holidays and tax incentive programs which will expire in whole or in part at various dates through 2019. Certain of

the holidays may be extended if specific conditions are met. The net impact of these tax holidays and tax incentives was

to increase the Company's net earnings by $66.7 million ($.31 per diluted share), $54.9 million ($.25 per diluted

share) and $33.6 million ($.16 per diluted share) in 2005, 2004 and 2003, respectively.

At July 1, 2005, the Company had federal and state net operating loss carryforwards of approximately $490 million

and $400 million, respectively. In addition, the Company had various federal and state tax credit carryforwards of

approximately $55.3 million. The loss carryforwards are available to offset future federal and state taxable income

through 2021 and 2014, respectively. Approximately $24.3 million of the credit carryforwards are available to offset

future taxable income through 2025. The remaining $31.0 million are available indefinitely.

Note 11. Quarterly Results of Operations (unaudited)

First(1) Second Third Fourth(2)

(in millions, except per share amounts)

2005

Revenue, net ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $823.6 $954.9 $919.9 $940.4

Gross marginÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 113.1 150.2 167.0 159.5

Operating income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 31.2 56.6 70.7 38.4

Net income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 30.4 56.0 70.8 41.2

Basic earnings per shareÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 0.15 $ 0.27 $ 0.34 $ 0.19

Diluted earnings per shareÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 0.14 $ 0.26 $ 0.32 $ 0.19

2004

Revenue, net ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $714.2 $834.8 $748.9 $748.8

Gross marginÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 96.2 141.8 122.6 100.9

Operating income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 4.9 71.3 48.9 29.8

Net income ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 5.0 68.8 47.9 29.6

Basic earnings per shareÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 0.02 $ 0.33 $ 0.23 $ 0.14

Diluted earnings per shareÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 0.02 $ 0.32 $ 0.22 $ 0.14

(1) The first quarter of 2004 included $50.4 million of start-up expenses and one-time charges related to the Read-Rite

asset acquisition.

(2) The fourth quarter of 2005 included a $19.0 million charge for settlement of litigation, which was recorded in

selling, general and administrative expense.

61

WESTERN DIGITAL CORPORATION

SCHEDULE II Ì CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTSThree years ended July 1, 2005

(in millions)

Allowance forDoubtfulAccounts

Balance at June 28, 2002 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 7.6

Charges to operations ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 2.9

Deductions ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (5.3)

Balance at June 27, 2003 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 5.2

Charges to operations ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 1.2

Deductions ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (0.3)

Balance at July 2, 2004 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 6.1

Charges to operations ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ 2.1

Deductions ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ (5.2)

Balance at July 1, 2005 ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ $ 3.0

62

Item 9. Changes in and Disagreements with Accountants on Accounting and FinancialDisclosure

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

The Company maintains disclosure controls and procedures that are designed to provide reasonable assurance that

information required to be disclosed in the Company's reports filed under the Securities Exchange Act of 1934, as

amended, is recorded, processed, summarized and reported within the time periods specified in the Securities and

Exchange Commission's rules and forms, and that such information is accumulated and communicated to the Company's

management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely

decisions regarding required disclosures. In designing and evaluating the disclosure controls and procedures, management

recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable

assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the

cost-benefit relationship of possible controls and procedures.

As required by SEC Rule 13a-15(b), the Company carried out an evaluation, under the supervision and with the

participation of the Company's management, including the Company's Chief Executive Officer and Chief Financial

Officer, of the effectiveness of the design and operation of the Company's disclosure controls and procedures as of the end

of the period covered by this report.

Based on the foregoing, the Company's Chief Executive Officer and Chief Financial Officer concluded that, as of the

end of the period covered by this report, the Company's disclosure controls and procedures were effective at the

reasonable assurance level.

Management's Report on Internal Control over Financial Reporting

The Company's management is responsible for establishing and maintaining adequate internal control over financial

reporting to provide reasonable assurance regarding the reliability of the Company's financial reporting and the

preparation of financial statements for external purposes in accordance with generally accepted accounting principles.

Internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of

records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of the Company;

(ii) provide reasonable assurance that the transactions are recorded as necessary to permit preparation of financial

statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the

Company are being made only in accordance with authorizations of management and directors of the Company; and

(iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition

of the Company's assets that could have a material effect on the financial statements.

The Company's management evaluated the effectiveness of its internal control over financial reporting using the

criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal

Control Ì Integrated Framework. Based on its evaluation, the Company's management concluded that its internal control

over financial reporting was effective as of the end of the Company's last fiscal year.

KPMG LLP, the independent registered public accounting firm that audited the consolidated financial statements

included in this Annual Report on Form 10-K, has issued an attestation report on management's assessment of the

Company's internal control over financial reporting. See page 40 herein.

Changes in Internal Control over Financial Reporting

There has been no change in the Company's internal control over financial reporting during the Company's most

recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Company's internal control

over financial reporting.

63

Inherent Limitations of Effectiveness of Controls

The Company's management, including its Chief Executive Officer and its Chief Financial Officer, does not expect

that its disclosure controls and procedures or its internal control over financial reporting will prevent all error and all fraud.

A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that

the objectives of the control system are met. Further, the benefits of controls must be considered relative to their costs.

Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all

control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include

the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of simple error or

mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more

people, or by management override of the control. The design of any system of controls is also based in part upon certain

assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving

its stated goals under all potential future conditions. Because of the inherent limitations in a cost-effective control system,

misstatements due to error or fraud may occur and not be detected.

Item 9B. Other Information

At a board meeting held on August 5, 2005, our board of directors approved the payment of $2,500 per day (or

time aggregating a full work day) for time spent by any independent director outside of board or committee meetings

assisting with specified succession planning matters.

PART III

Item 10. Directors and Executive Officers of the Registrant

There is incorporated herein by reference the information required by this Item included in the Company's Proxy

Statement for the 2005 Annual Meeting of Shareholders, which will be filed with the Securities and Exchange

Commission no later than 120 days after the close of the fiscal year ended July 1, 2005, except that the information

required by this Item 10 concerning executive officers is set forth in Part I of this report under ""Item 1. Business Ì

Executive Officers of the Registrant.''

Item 11. Executive Compensation

There is incorporated herein by reference the information required by this Item included in the Company's Proxy

Statement for the 2005 Annual Meeting of Shareholders, which will be filed with the Securities and Exchange

Commission no later than 120 days after the close of the fiscal year ended July 1, 2005.

Item 12. Security Ownership of Certain Beneficial Owners and Management and RelatedStockholder Matters

There is incorporated herein by reference the information required by this Item included in the Company's Proxy

Statement for the 2005 Annual Meeting of Shareholders, which will be filed with the Securities and Exchange

Commission no later than 120 days after the close of the fiscal year ended July 1, 2005.

Item 13. Certain Relationships and Related Transactions

There is incorporated herein by reference the information, if any, required by this Item included in the Company's

Proxy Statement for the 2005 Annual Meeting of Shareholders, which will be filed with the Securities and Exchange

Commission no later than 120 days after the close of the fiscal year ended July 1, 2005.

Item 14. Principal Accountant Fees and Services

There is incorporated herein by reference the information required by this Item included in the Company's Proxy

Statement for the 2005 Annual Meeting of Shareholders, which will be filed with the Securities and Exchange

Commission no later than 120 days after the close of the fiscal year ended July 1, 2005.

64

PART IV

Item 15. Exhibits and Financial Statement Schedules

(a) Documents filed as a part of this Report:

(1) Financial Statements

The financial statements included in Part II, Item 8 of this document are filed as part of this Report.

(2) Financial Statement Schedules

The financial statement schedule included in Part II, Item 8 of this document is filed as part of this Report.

All other schedules are omitted as the required information is inapplicable or the information is presented in the

consolidated financial statements or related Notes.

Separate financial statements of the Company have been omitted as the Company is primarily an operating company

and its subsidiaries are wholly or majority owned and do not have minority equity interests and/or indebtedness to any

person other than the Company in amounts which together exceed 5% of the total consolidated assets as shown by the

most recent year-end consolidated balance sheet.

(3) Exhibits

The following exhibits are filed herewith or are incorporated by reference, as specified below, from exhibits

previously filed with the Securities and Exchange Commission. The Company shall furnish copies of exhibits for a

reasonable fee (covering the expense of furnishing copies) upon written request to the Company's Secretary at the

Company's principal executive offices.

ExhibitNumber Description

2.1 Asset Purchase Agreement between Chapter 7 Trustee for the Bankruptcy Estate of Read-Rite Corporation andRR (US) Acquisition Corporation, dated July 24, 2003, including Option Agreements to purchase all of theoutstanding capital stock of Read-Rite International, Sunward Technologies International, and Read RiteHolding Company(16)

3.1 Amended and Restated Certificate of Incorporation of Western Digital Corporation, filed with the office of theSecretary of State of the State of Delaware on April 6, 2001(7)

3.2 Certificate of Amendment of Certificate of Incorporation of Western Digital Corporation, filed with the officeof the Secretary of State of the State of Delaware on January 8, 2002(15)

3.3 Amended and Restated By-laws of Western Digital Corporation, adopted as of May 19, 2004(20)

4.1 Rights Agreement between Western Digital Corporation and American Stock Transfer & Trust Company, asRights Agent, dated as of April 6, 2001, which includes as Exhibit A thereto the Form of Right Certificate tobe distributed to holders of Rights after the Distribution Date (as that term is defined in the RightsAgreement)(7)

4.2 Form of Common Stock Certificate(1)

4.3 Certificate of Designations of Series A Junior Participating Preferred Stock of Western Digital Corporation,dated April 6, 2001(7)

10.1 Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan(23)*

10.1.1 Form of Notice of Grant of Stock Option and Option Agreement Ì Executives, under the Western DigitalCorporation 2004 Performance Incentive Plan(21)*

10.1.2 Form of Notice of Grant of Restricted Stock and Restricted Stock Agreement Ì Executives, under theWestern Digital Corporation 2004 Performance Incentive Plan(21)*

10.1.3 Western Digital Corporation 2004 Performance Incentive Plan Non-Employee Director Option GrantProgram and Form of Notice of Grant of Stock Option and Option Agreement Ì Non-EmployeeDirectors(21)*

10.1.4 Form of Notice of Grant of Performance Share Awards and Performance Share Award Agreement under theWestern Digital Corporation 2004 Performance Incentive Plan(25)*

65

ExhibitNumber Description

10.1.5 Form of Notice of Stock Option Grant and Stock Option Agreement (non-executives) under the WesternDigital Corporation Amended and Restated 2004 Performance Incentive Plan(21)

10.1.6 Form of Notice of Grant of Restricted Stock Agreement and Stock Agreement (non-executives) under theWestern Digital Corporation Amended and Restated 2004 Performance Incentive Plan(21)

10.2 Western Digital Corporation Amended and Restated Employee Stock Option Plan, as amended onNovember 5, 1998(3)*

10.2.1 First Amendment to the Western Digital Corporation Employee Stock Option Plan, dated April 6, 2001(8)*

10.2.2 Form of Notice of Grant of Stock Options and Stock Option Agreement under the Western DigitalCorporation Amended and Restated Employee Stock Option Plan as amended.‰*

10.3 Western Digital Corporation Broad-Based Stock Incentive Plan(5)*

10.3.1 First Amendment to the Western Digital Corporation Broad-Based Stock Incentive Plan, dated April 6,2001(8)*

10.3.2 Form of Notice of Grant of Restricted Stock and Restricted Stock Agreement under the Western DigitalCorporation Broad Based Stock Incentive Plan as amended.‰*

10.4 Western Digital Corporation Amended and Restated Stock Option Plan for Non-Employee Directors, effectiveas of May 25, 2000(8)*

10.4.1 First Amendment to the Western Digital Corporation Amended and Restated Stock Option Plan for Non-Employee Directors, dated April 6, 2001(8)*

10.5 Western Digital Corporation Amended and Restated 1993 Employee Stock Purchase Plan (amended as ofNovember 20, 2003)(19)*

10.6 Amended and Restated Western Digital Corporation Non-Employee Directors Stock-For-Fees Plan, effectiveas of November 18, 2004(24)*

10.7 Amended and Restated Western Digital Corporation Non-Employee Director Restricted Stock Unit Plan,effective March 28, 2003 and amended and restated November 18, 2004(24)*

10.8 Western Digital Corporation Incentive Compensation Plan(9)*

10.8.1 Description of Performance Goals for Cash Bonus Awards under the Western Digital Corporation IncentiveCompensation Plan(24)*

10.9 Summary of Compensation Arrangements for Named Executive Officers and Directors‰*

10.10 Amended and Restated Deferred Compensation Plan, effective March 28, 2003(14)*

10.11 Amended and Restated Executive Bonus Plan, effective March 28, 2003(14)*

10.12 Amended and Restated 401(k) Plan, adopted as of March 28, 2002(11)*

10.12.1 First Amendment to Western Digital Corporation 401(k) Plan, effective as of July 1, 2002(13)*

10.13 Western Digital Corporation Executive Retention Plan(2)*

10.14 Amended and Restated Long-Term Retention Agreement, between Western Digital Corporation and MatthewE. Massengill, effective as of December 20, 2002(13)*

10.15 Employment Agreement, dated as of August 25, 2005 between Western Digital Corporation and Matthew E.Massengill(26)*

10.16 Amended and Restated Long-Term Retention Agreement, between Western Digital Corporation and ArifShakeel, effective as of December 20, 2002(13)*

10.17 Employment Agreement dated as of August 25, 2005, between Western Digital Corporation and ArifShakeel(26)*

10.18 Long-Term Retention Agreement Ì Cash, between Western Digital Corporation and Hossein M. Moghadam,dated as of September 21, 2004‰*

10.19 Western Digital Corporation 1999 Employee Severance Plan for U.S. Employees, effective December 1,1999(4)*

10.19.1 First Amendment to the Western Digital Corporation 1999 Employee Severance Plan for U.S. Employees,dated April 6, 2001(8)*

10.20 Western Digital Corporation Amended and Restated Change of Control Severance Plan, effective March 29,2001(13)*

66

ExhibitNumber Description

10.21 Letter agreement, dated September 10, 2004, by and between Western Digital Technologies, Inc. and StephenD. Milligan(20)*

10.22 Form of Indemnity Agreement for Directors of Western Digital Corporation(12)

10.23 Form of Indemnity Agreement for Officers of Western Digital Corporation(12)

10.24 Sublease, dated as of September 23, 2003, by and between Advanced Logic Research, Inc. and WesternDigital Corporation(20)

10.25 Lease by and between Serrano Jack, L.L.C. and Western Digital Corporation, dated May 30, 2000(6)

10.26 Standard Industrial/Commercial Single-Tenant Lease and Addendum No. 1, dated May 1, 2000, betweenOne Morgan, LLC and Western Digital Corporation(18)

10.27 Lease Agreement, dated June 3, 1996, together with First Amendment, between South Bay/EdenvaleAssociates and Western Digital Corporation(18)

10.27.1 Second Amendment to Lease, dated as of April 6, 2004, between Trinet Essential Facilities XXVI, Inc. andWestern Digital Technologies, Inc.(25)

10.27.2 Third Amendment to Lease, dated as of March 1, 2005, between Trinet Essential Facilities XXVI, Inc. andWestern Digital Technologies, Inc.(25)

10.28 Single Tenant Industrial Lease Agreement, dated as of August 24, 1992, between Shuwa InvestmentsCorporation and Read-Rite Corporation, together with Second Amendment to Lease, dated as of May 28,2002(18)

10.29 Volume Purchase Agreement, dated as of June 6, 2005, by and between Komag USA (Malaysia) Sdn.,Komag, Incorporated, and Western Digital Technologies, Inc.‰Û

10.29.1 Amendment No. 1 to Volume Purchase Agreement, dated as of July 22, 2005, by and between Komag USA(Malaysia) Sdn., Komag, Incorporated, and Western Digital Technologies, Inc.‰Û

10.30 Supply Agreement, dated as of August 17, 2005, by and between Showa Denko K.K. and Western DigitalTechnologies, Inc.‰Û

10.31 Supply Agreement for the Fabrication and Purchase of Semiconductor Products, dated June 13, 2002, amongMarvell Semiconductor, Inc., Marvell Asia Pte. Ltd. and Western Digital Technologies, Inc.(14)(17)

10.32 Amended and Restated Credit Agreement, dated as of September 19, 2003, among Western DigitalTechnologies, Inc., the other credit parties identified therein, General Electric Capital Corporation and Bank ofAmerica, N.A.(22)Û

10.32.1 First Amendment to Amended and Restated Credit Agreement, dated as of September 8, 2004, amongWestern Digital Technologies, Inc., Western Digital (Fremont), Inc., the other credit parties and guarantorsthereto, General Electric Capital Corporation and Bank of America, N.A.‰

10.32.2 Second Amendment to Amended and Restated Credit Agreement, dated as of April 22, 2005, by and amongWestern Digital Technologies, Inc., Western Digital (Fremont), Inc., the other credit parties and guarantorsthereto, General Electric Capital Corporation and Bank of America, N.A.‰

10.33 Continuing Guaranty, between Western Digital Corporation and General Electric Capital Corporation, datedas of April 7, 2001(8)

10.34 Master Equipment Lease Agreement dated June 24, 2004 between CIT Technologies Corporation, doingbusiness as CIT Systems Leasing, and Western Digital Technologies, Inc.(20)

21 Subsidiaries of Western Digital Corporation‰

23 Consent of Independent Registered Public Accounting Firm‰

31.1 Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002‰

31.2 Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002‰

32.1 Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant toSection 906 of the Sarbanes-Oxley Act of 2002‰

32.2 Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant toSection 906 of the Sarbanes-Oxley Act of 2002‰

67

‰ Filed with this Report.

* Management contract or compensatory plan or arrangement required to be filed as an exhibit pursuant to

applicable rules of the Securities and Exchange Commission.

Û Certain portions of this exhibit have been omitted pursuant to a confidential treatment request filed separately

with the Securities and Exchange Commission.

(1) Incorporated by reference to the Company's Registration Statement on Form 8-B, filed April 13, 1987.

(2) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on November 10, 1998.

(3) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on February 8, 1999.

(4) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on February 14, 2000.

(5) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on May 15, 2000.

(6) Incorporated by reference to the Company's Annual Report on Form 10-K (File No. 1-08703), as filed with the

Securities and Exchange Commission on September 28, 2000.

(7) Incorporated by reference to the Company's Current Report on Form 8-K (File No. 1-08703), as filed with the

Securities and Exchange Commission on April 6, 2001.

(8) Incorporated by reference to the Company's Annual Report on Form 10-K (File No. 1-08703), as filed with the

Securities and Exchange Commission on September 27, 2001.

(9) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on November 13, 2001.

(10) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on February 8, 2002.

(11) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on May 6, 2002.

(12) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on November 8, 2002.

(13) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on February 7, 2003.

(14) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on May 9, 2003.

(15) Incorporated by reference to the Company's Registration Statement on Form S-8 (File No. 333-107227), as filed

with the Securities and Exchange Commission on July 22, 2003.

(16) Incorporated by reference to the Company's Current Report on Form 8-K (File No. 1-08703), as filed with the

Securities and Exchange Commission on August 15, 2003.

(17) Subject to confidentiality order dated September 5, 2003.

(18) Incorporated by reference to the Company's Annual Report on Form 10-K (File No. 1-08703), as filed with the

Securities and Exchange Commission on September 23, 2003.

(19) Incorporated by reference to the Company's Proxy Statement (File No. 1-08703), as filed with the Securities and

Exchange Commission on October 7, 2003.

(20) Incorporated by reference to the Company's Annual Report on Form 10-K (File No. 1-08703), as filed with the

Securities and Exchange Commission on September 14, 2004.

(21) Incorporated by reference to the Company's Current Report on Form 8-K (File No. 1-08703), as filed with the

Securities and Exchange Commission on November 23, 2004.

68

(22) Incorporated by reference to Amendment No. 1 to the Company's Quarterly Report on Form 10-Q (File

No. 1-08703), as filed with the Securities and Exchange Commission on January 12, 2005.

(23) Incorporated by reference to the Company's Registration Statement on Form S-8 (File No. 333-122475), as filed

with the Securities and Exchange Commission on February 2, 2005.

(24) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on February 9, 2005.

(25) Incorporated by reference to the Company's Quarterly Report on Form 10-Q (File No. 1-08703), as filed with

the Securities and Exchange Commission on May 6, 2005.

(26) Incorporated by reference to the Company's Current Report on Form 8-K (File No. 1-8703), as filed with the

Securities and Exchange Commission on August 26, 2005.

69

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has

duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

WESTERN DIGITAL CORPORATION

By: /s/ STEPHEN D. MILLIGAN

Stephen D. Milligan

Senior Vice President and Chief Financial Officer

Dated: September 13, 2005

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the

following persons on behalf of the Registrant and in the capacities and on the dates indicated.

Signature Title Date

/s/ MATTHEW E. MASSENGILL Chairman and Chief Executive Officer September 13, 2005(Principal Executive Officer)Matthew E. Massengill

/s/ STEPHEN D. MILLIGAN Senior Vice President and Chief September 13, 2005Financial Officer (Principal FinancialStephen D. Milligan

Officer)

/s/ JOSEPH R. CARRILLO Vice President and Corporate Controller September 13, 2005(Principal Accounting Officer)Joseph R. Carrillo

/s/ PETER D. BEHRENDT Director September 13, 2005

Peter D. Behrendt

/s/ KATHLEEN A. COTE Director September 13, 2005

Kathleen A. Cote

/s/ HENRY T. DENERO Director September 13, 2005

Henry T. DeNero

/s/ WILLIAM L. KIMSEY Director September 13, 2005

William L. Kimsey

/s/ MICHAEL D. LAMBERT Director September 13, 2005

Michael D. Lambert

/s/ ROGER H. MOORE Director September 13, 2005

Roger H. Moore

/s/ THOMAS E. PARDUN Director September 13, 2005

Thomas E. Pardun

/s/ ARIF SHAKEEL Director September 13, 2005

Arif Shakeel

70

Exhibit 21

WESTERN DIGITAL CORPORATIONSUBSIDIARIES OF THE COMPANY

State or Other Jurisdiction ofName of Entity Incorporation or Organization

Pacifica Insurance Corporation ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Hawaii

Read-Rite InternationalÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Cayman Islands

Read-Rite (Malaysia) Sdn. BhdÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Malaysia

Read-Rite Philippines, Inc. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Philippines

Western Digital (BangPa-In) Company, Limited ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Thailand

Western Digital Canada Corporation ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ontario, Canada

Western Digital (Deutschland) GmbHÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Germany

Western Digital (France) SARL ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ France

Western Digital (Fremont), Inc. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Delaware

Western Digital Hong Kong LimitedÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Hong Kong

Western Digital Ireland, Ltd. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Cayman Islands

Western Digital (I.S.) Limited ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Ireland

Western Digital Japan Ltd. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Japan

Western Digital Korea, Ltd. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Republic of Korea

Western Digital Latin America, Inc. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Delaware

Western Digital (Malaysia) Sdn. Bhd ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Malaysia

Western Digital Netherlands B.VÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ The Netherlands

Western Digital (S.E. Asia) Pte Ltd ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Singapore

Western Digital Taiwan Co., Ltd. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Taiwan

Western Digital Technologies, Inc. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Delaware

Western Digital (Thailand) Company Limited ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Thailand

Western Digital (UK) Limited ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ England

Western Digital Ventures, Inc. ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ Delaware

Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors

Western Digital Corporation:

We consent to the incorporation by reference in the registration statements on Forms S-8 (Nos. 2-76179, 2-97365,

33-9853, 33-57953, 33-60166, 33-60168, 33-51725, 333-20359, 333-31487, 333-41423, 333-42991, 333-70413,

333-95499, 333-36332, 333-56738, 33-24585, 33-33365, 33-56128, 333-107227, 333-111130 and 333-122475)

and S-3 (Nos. 33-51695 and 333-36350) of Western Digital Corporation of our report dated September 9, 2005

related to the consolidated balance sheets of Western Digital Corporation and subsidiaries as of July 1, 2005 and July 2,

2004 and the related consolidated statements of income, shareholders' equity and comprehensive income and cash flows

for each of the years in the three-year period ended July 1, 2005, and the related financial statement schedule,

management's assessment of the effectiveness of internal controls over financial reporting as of July 1, 2005 and the

effectiveness of internal controls over financial reporting as of July 1, 2005, which reports appear in the July 1, 2005

annual report on Form 10-K of Western Digital Corporation.

September 9, 2004

Costa Mesa, California

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Matthew E. Massengill, certify that:

1. I have reviewed this Annual Report on Form 10-K of Western Digital Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a

material fact necessary to make the statements made, in light of the circumstances under which such statements were

made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly

present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for,

the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure

controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15(d)-15(e)) and internal control over

financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be

designed under our supervision, to ensure that material information relating to the registrant, including its

consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in

which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial

reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial

reporting and the preparation of financial statements for external purposes in accordance with generally accepted

accounting principles;

c. Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report

our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered

by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant's internal control over financial reporting that occurred

during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual

report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over

financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal

control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors

(or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over

financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process,

summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant

role in the registrant's internal control over financial reporting.

/s/ MATTHEW E. MASSENGILL

Matthew E. Massengill

Chief Executive Officer

Dated: September 13, 2005

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICERPURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Stephen D. Milligan, certify that:

1. I have reviewed this Annual Report on Form 10-K of Western Digital Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a

material fact necessary to make the statements made, in light of the circumstances under which such statements were

made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly

present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for,

the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure

controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15(d)-15(e)) and internal control over

financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be

designed under our supervision, to ensure that material information relating to the registrant, including its

consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in

which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial

reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial

reporting and the preparation of financial statements for external purposes in accordance with generally accepted

accounting principles;

c. Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report

our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered

by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant's internal control over financial reporting that occurred

during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual

report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over

financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal

control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors

(or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over

financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process,

summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant

role in the registrant's internal control over financial reporting.

/s/ STEPHEN D. MILLIGAN

Stephen D. Milligan

Chief Financial Officer

Dated: September 13, 2005

Exhibit 32.1

The following certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. Û 1350 and in

accordance with SEC Release No. 33-8238. This certification shall not be deemed ""filed'' for purposes of Section 18 of

the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be

incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities

Exchange Act of 1934, as amended, except to the extent that Western Digital Corporation specifically incorporates it by

reference.

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. Û 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned

officer of Western Digital Corporation, a Delaware corporation (the ""Company''), hereby certifies, to his knowledge,

that:

(i) the accompanying Annual Report on Form 10-K of the Company for the period ended July 1, 2005 (the

""Report'') fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities

Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition

and results of operations of the Company.

/s/ MATTHEW E. MASSENGILL

Matthew E. Massengill

Chief Executive Officer

Dated: September 13, 2005

A signed original of this written statement required by Section 906 has been provided to the Company and will be

retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

Exhibit 32.2

The following certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. Û 1350 and in

accordance with SEC Release No. 33-8238. This certification shall not be deemed ""filed'' for purposes of Section 18 of

the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be

incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities

Exchange Act of 1934, as amended, except to the extent that Western Digital Corporation specifically incorporates it by

reference.

Certification of Chief Financial Officer

Pursuant to 18 U.S.C. Û 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned

officer of Western Digital Corporation, a Delaware corporation (the ""Company''), hereby certifies, to his knowledge,

that:

(i) the accompanying Annual Report on Form 10-K of the Company for the period ended July 1, 2005 (the

""Report'') fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities

Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition

and results of operations of the Company.

/s/ STEPHEN D. MILLIGAN

Stephen D. Milligan

Chief Financial Officer

Dated: September 13, 2005

A signed original of this written statement required by Section 906 has been provided to the Company and will be

retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

Board of Directors

Matthew E. Massengill Chairman andChief Executive OfficerWestern Digital Corporation

Peter D. BehrendtFormer Chairman, President and Chief Executive OfficerExabyte CorporationComputer tape storage products manufacturer

Kathleen A. CoteFormer Chief Executive OfficerWorldport Communications, Inc.Internet managed services provider

Henry T. DeNeroFormer Chairman and Chief Executive OfficerHomespace, Inc.Internet real eastate and home services provider

William L. KimseyFormer Global Chief Executive OfficerErnst & Young Financial and consulting services

Michael D. LambertFormer Senior Vice PresidentDell Computer CorporationComputer manufacturer

Roger H. MooreFormer President and Chief Executive OfficerIlluminet Holdings, Inc.Network, database and billing services provider

Thomas E. PardunFormer Chairman and Chief Executive OfficerEdge2net, Inc.International communications company

Arif ShakeelPresident and Chief Operating OfficerWestern Digital Corporation

Corporate Officers

Matthew E. MassengillChairman andChief Executive Officer

Arif ShakeelPresident andChief Operating Officer

John F. CoyneExecutive Vice President,Worldwide Operations

Raymond M. BukatySenior Vice President,Administration, General Counsel and Secretary

Stephen D. MilliganSenior Vice President andChief Financial Officer

Hossein M. MoghadamSenior Vice President,Research and Development

Corporate Information

Certain Forward-Looking Statements

This Annual Report contains forward-looking statements, includingstatements relating to conditions in the hard drive industry; WD’sexpectations regarding the total available market for hard drivesaddressable by WD following shipment of its one-inch hard drives;WD’s planned introduction and shipment of one-inch hard drives;WD’s plans for investing in research and development and the beliefthat this investment will result in a refreshment of WD’s entireproduct line by the end of calendar year 2006; WD’s share repurchaseactivities; WD’s business and market expansion strategies; WD’sexpectations regarding market conditions for desktop and enterpriseproducts, smaller form factor hard drives and personal and digitalvideo recorders; and WD’s expectation for reporting continuedfavorable results to enable continued growth in the company’s value.These forward-looking statements are based on current managementexpectations and are subject to risks and uncertainties that could causeactual results to differ materially from those expressed in the forward-looking statements, including: pricing trends and fluctuations inaverage selling prices (ASPs); actions by competitors; changes in theavailability and cost of specialized product components; supply anddemand conditions in the hard drive industry; changes in product andcustomer mix; uncertainties related to the development andintroduction of products based on new technologies and successfulexpansion into new hard drive markets, including the 1-inch andother small form factor markets; difficulties in reducing yield lossesfrom complex manufacturing processes; business conditions andgrowth in the desktop, notebook, consumer electronics, handheldapplications, SATA and enterprise markets; and other risks anduncertainties listed in WD’s Form 10-K for the fiscal year ended July1, 2005, to which your attention is directed. Readers are cautionednot to place undue reliance on these forward-looking statements,which speak only as of the date hereof, and WD undertakes noobligation to update these forward-looking statements to reflectsubsequent events or circumstances.

Stock Exchange ListingWestern Digital common stock is listed on the New YorkStock Exchange (NYSE) and trades under the symbol WDC.WD’s Chief Executive Officer has submitted to the NYSE a certificatecertifying that he is not aware of any violations by WD of the NYSEcorporate governance listing standards.

Worldwide Web SiteFor current information on WD, visit our Web site atwww.westerndigital.com.

Western Digital, WD Caviar and WD Raptor are registered trademarks; andWD, the WD logo, NetCenter and WD Passport are trademarks of Digital Technologies, Inc. Other trademarks may be mentioned herein that belongto other companies.

© 2005 Western Digital Corporation. All rights reserved.

2278-001005-A01

Manufacturing FacilitiesFremont, CaliforniaSelangor, MalaysiaBang Pa-In, ThailandPathumthani, Thailand

Research and Development CentersLake Forest, CaliforniaSan Jose, California

Domestic Sales OfficesLake Forest, CaliforniaSan Jose, CaliforniaBoca Raton, FloridaClearwater, FloridaReading, MassachusettsAustin, TexasDallas, TexasHouston, Texas

International Sales/Representative OfficesWestern Digital Canada CorporationMississauga, Ontario, Canada

Western Digital (Deutschland) GmbHMunich, Germany

Western Digital (France) SARLOrsay, France

Western Digital Hong Kong LimitedQuarry Bay, Hong KongShenzhen, ChinaShanghai, ChinaBeijing, China

Western Digital Japan Ltd.Tokyo, Japan

Western Digital (Malaysia) Sdn. Bhd.Selangor, Malaysia

Western Digital (S.E. Asia) Pte Ltd.Singapore

Western Digital Taiwan Co., Ltd.Taipei, Taiwan R.O.C.

WD Korea, Ltd.Kangnam-Gu, Seoul Korea

Western Digital (UK) LimitedLeatherhead, Surrey, EnglandPrague, Czech RepublicDubai, UAE Moscow, Russia

Transfer Agent and RegistrarAmerican Stock Transfer & Trust Company59 Maiden LanePlaza LevelNew York, NY 10038Telephone: 800.937.5449

Certified Public AccountantsKPMG LLP

Western